Question

помогите пж срочно даю 20 балов

Answer 1

1)

$\frac{3}{4} + \frac{4}{9} = \frac{27 + 16}{36} = \frac{43}{36} = 1 \frac{7}{36}$

2)

$\frac{7}{12} - \frac{3}{8} = \frac{14 - 9}{24} = \frac{5}{24}$

3)

$2 \frac{5}{8} + 1 \frac{3}{10} = \frac{21}{8} + \frac{13}{10} = \frac{105 + 52}{40} = \frac{157}{40} = 3 \frac{37}{40}$

4)

$6\frac{7}{10} - 4 \frac{5}{12} = \frac{67}{10} - \frac{53}{12} = \frac{402 - 265}{60} = \frac{137}{60} = 2 \frac{17}{60}$

♡