Tính a) (-5/24 + 0,75 + 7/12) : (-2 1/8) b) 75% -3 1/2 + 1,5 : 10/7
Giải thích
a) −524+0,75+712:−218=−524+34+712:−178=98.−817=−917.
b) 75% - 312 + 1,5 : 107=34−52+32 : 710=34−52+32.710=−1420=−710.
a) −524+0,75+712:−218=−524+34+712:−178=98.−817=−917.
b) 75% - 312 + 1,5 : 107=34−52+32 : 710=34−52+32.710=−1420=−710.