Æfingapróf

195$\frac{19}{5}$

327$3\frac{2}{7}$

$\frac{1}{2},1\frac{2}{3},\mathrm{-2}\frac{3}{4},$ og $\frac{9}{4}$

520$\frac{5}{20}$

18⁢𝑟27⁢𝑠$\frac{18r}{27s}$

13·34$\frac{1}{3}·\frac{3}{4}$

35·15$\frac{3}{5}·15$

−36⁢𝑢⁡(−49)$\mathrm{-36}u\left(-\frac{4}{9}\right)$

−5⁢712·4411$\mathrm{-5}\frac{7}{12}·4\frac{4}{11}$

−56÷512$-\frac{5}{6}÷\frac{5}{12}$

711÷(−711)$\frac{7}{11}÷\left(-\frac{7}{11}\right)$

9⁢𝑎10÷15⁢𝑎8$\frac{9a}{10}÷\frac{15a}{8}$

−6⁢25÷4$\mathrm{-6}\frac{2}{5}÷4$

(−15⁢56)÷(−3⁢16)$\left(\mathrm{-15}\frac{5}{6}\right)÷\left(\mathrm{-3}\frac{1}{6}\right)$

−6611$\frac{\mathrm{-6}}{\frac{6}{11}}$

𝑝2𝑞5$\frac{\frac{p}{2}}{\frac{q}{5}}$

−415−2⁢23$\frac{-\frac{4}{15}}{\mathrm{-2}\frac{2}{3}}$

92−429−4$\frac{9^2-4^2}{9-4}$

2𝑑+9𝑑$\frac{2}{d}+\frac{9}{d}$

−313+(−413)$-\frac{3}{13}+\left(-\frac{4}{13}\right)$

−2225+940$-\frac{22}{25}+\frac{9}{40}$

25+(−75)$\frac{2}{5}+\left(-\frac{7}{5}\right)$

−310+(−58)$-\frac{3}{10}+\left(-\frac{5}{8}\right)$

−34÷𝑥3$-\frac{3}{4}÷\frac{x}{3}$

23−22(34)₂$\frac{2^3-2^2}{{\left(\frac{3}{4}\right)}^2}$

514+18956$\frac{\frac{5}{14}+\frac{1}{8}}{\frac{9}{56}}$

$x+\frac{1}{3}$ þegar

1. ⓐ 𝑥 =23$x=\frac{2}{3}$
2. ⓑ 𝑥 =−56$x=-\frac{5}{6}$

𝑦+35=75$y+\frac{3}{5}=\frac{7}{5}$

𝑎−310=−910$a-\frac{3}{10}=-\frac{9}{10}$

𝑓+(−23)=512$f+\left(-\frac{2}{3}\right)=\frac{5}{12}$

𝑚−2=−16$\frac{m}{\mathrm{-2}}=\mathrm{-16}$

−23⁢𝑐=18$-\frac{2}{3}c=18$

Þýðið yfir á jöfnu og leysið: Kvóti $p$ og $\mathrm{-4}$ er $\mathrm{-8}.$ Leysið fyrir $p.$