Question

Câu 1:

*LƯU Ý: dấu này"." là nhân.

a) \(57\%+1\frac{2}{15}:\frac{68}{25}-2.282\)

b) \(1\frac{13}{15}.0,75-\left(\frac{8}{15}+0,25\right).\frac{24}{47}\)

c) \(\frac{3}{4}.\frac{16}{9}-\frac{7}{5}:\frac{-21}{26}\)

d) \(5:\left(4\frac{3}{4}-1\frac{25}{28}\right)-1\frac{3}{8}:\left(\frac{3}{8}-\frac{9}{20}\right)\)

CÁC BẠN ƠI GIÚP MÌNH VOIỨ MAI MK NỘP CHO CÔ RÙI HUHU

Answer 1

a) =\(\frac{57}{100}+\frac{17}{15}.\frac{25}{68}-\frac{1141}{500}\)

= \(\frac{57}{100}+\frac{1}{3}.\frac{5}{4}-\frac{1141}{500}\)

= \(\frac{57}{100}+\frac{5}{12}-\frac{1141}{500}\)

= -\(\frac{1943}{1500}\)

"." là nhân

Answer 2

b) = \(\frac{28}{15}.\frac{3}{4}-\left(\frac{8}{15}+\frac{1}{4}\right).\frac{21}{47}\)

= \(\frac{7}{5}-\frac{47}{60}.\frac{21}{47}\)

= \(\frac{7}{5}-\frac{7}{20}\)

= \(\frac{28}{20}-\frac{7}{20}\)

= \(\frac{21}{20}\)

K nhé

Answer 3

NÃY MÌNH GỬI LỘN ĐÂY MỚI LÀ CÂU D CÂU D: https://scontent.fhan4-1.fna.fbcdn.net/v/t34.0-12/20668774_859181347591743_1500923664_n.jpg?oh=5664b3e559d9a895ab684c90a6107d68&oe=598C13E1