Question

Calculati:
a)7×3/5
b)2×5/8
c)1/3×12
d)7/56×14
e)3/5×1
f)2/5×3/7
g)1/9×3/5
h)4/5×11/8
i)17/10×20/3
j)1î1/3×3/4
k)3î4/7×2/15
l)9/8×1î3/5

/ inseamna supra
î inseamna întreg

Answer 1

a)7×3/5=21/5
b)2×5/8=10/8=5/4
c)1/3×12=12/3=4
d)7/56×14=14x7/56=7x2/8=14/8
e)3/5×1=3/5
f)2/5×3/7=6/35
g)1/9×3/5=3/45=1/15
h)4/5×11/8=44/40=11/10
i)17/10×20/317x2/3=34/3
j)1î1/3×3/4=4/3x3/4=1
k)3î4/7×2/15=25/7x2/15=5x2/7x3=10/21
l)9/8×1î3/5=9/8x8/5=9/5