Question

1) 3/5×4/2
2) 7 intregi 1/2×2/15
3) 5 intregi 1/2×4/22
4) 144/13×169/12
5) 111/24×76/222
va rog​

Answer 1

Răspuns:

$1) \frac{3}{5} \times \frac{4}{2} = \frac{12}{10} = 1 \frac{2}{10}$

$2)7 \frac{1}{2} \times \frac{2}{15} \: scoatem \: intregii \: 7 \times 2 + 1 = 15 \: \: \: \frac{15}{2} \times \frac{2}{15} \: se \: simpifica \: si \: inartim \: 2 \: la \: 2 \: si \: 15 \: la \: 15 = \frac{1}{1} = 1$

$3)5 \frac{1}{2} \times \frac{4}{22} = \frac{11}{2} \times \frac{4}{22} = \frac{4}{4} = 1$

$4) \frac{144}{13} \times \frac{169}{12} = \frac{156}{1}$

$5) \frac{111}{24} \times \frac{76}{222} = \frac{19}{12} = 1 \frac{7}{12}$

Mult succes la școală!!!!