Tính a) (1 1/4) . (-8/15) - 3/5 + 2/5 . (-3/4) b) (-0,125) . (-16) . (-8/9) . (-0,25)
Giải thích
a)
114.−815−35+25.−34=54.−815−35−310=−23−35−310=−4730
b)
−0,125.(−16).−89.−0,25=18.16.89.14=49
a)
114.−815−35+25.−34=54.−815−35−310=−23−35−310=−4730
b)
−0,125.(−16).−89.−0,25=18.16.89.14=49