Question

Найдите значения выражения. 1/2+6. 3/7, 6+4. 9/11, 2/9 +1. 8/15, 1/14+9. 3/7,7. 1/12+6, 5/7+3. 1/4

Answer 1

1) $\frac{1}{2} + \frac{45}{7} = \frac{7+90}{14} = \frac{90}{14}$

$6= 5\frac{11}{11}$

$5 \frac{11}{11} +4 \frac{9}{11} =9 \frac{20}{11} =9+ 1\frac{9}{11} =10 \frac{9}{11}$

$\frac{2}{9} + \frac{23}{15} = \frac{18+69}{45} = \frac{87}{45}$

$\frac{1}{14} + \frac{66}{7} = \frac{1+132}{14} = \frac{134}{14}$

$7 \frac{1}{12} +5 \frac{12}{12} =12 \frac{13}{12} =12+1 \frac{1}{12} =13 \frac{1}{12}$

$\frac{7}{5} + \frac{13}{4} = \frac{28+65}{20} = \frac{93}{20}$