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

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

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

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

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

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

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