56*(7分之3-8分之3+14分之9)要过程

2025-06-22 04:16:25
推荐回答(3个)
回答1:

(3/8+4/7)×56 =3/8×56+4/7×56 =21+32 =53

回答2:

原式=56x(3/7 -3/8 +9/14)
=56x3/7 -56x3/8 +56x9/14
=8x3-7x3+4x9
=24-21+36
=3+36
=39

回答3:

56x(3/7-3/8+9/14)
=56x3/7-56x3/8+56x9/14
=24-21+36
=39