Question

varog exercitiul 17varog imi trebuie rapid apasati pe foto ca se vede mai bine

Answer 1

a)2/5−1/10=2/5−1/10=2/5+−1/10=4/10+−1/10=4+−1/10=3/10 (Decimal: 0.3)
b)5/9−1/3=5/9−1/3=5/9+−1/3=5/9+−3/9=5+−3/9=2/9 (Decimal: 0.222222)
c)3/4−5/8=3/4−5/8=3/4+−5/8=6/8+−5/8=6+−5/8=1/8 (Decimal: 0.125)
d)1/2−1/3=1/2−1/3=1/2+−1/3=3/6+−2/6=3+−2/6=1/6 (Decimal: 0.166667)
e)3/4−2/7=3/4−2/7=3/4+−2/7=21/28+−8/28=21+−8/28=13/28 (Decimal: 0.464286)
f)3/5−3/7=3/5−3/7=3/5+−3/7=21/35+−15/35=21+−15/35=6/35 (Decimal: 0.171429)
g)2/9−1/6=2/9−1/6=2/9+−1/6=4/18+−3/18=4+−3/18=1/18 (Decimal: 0.055556)
h)5/12−2/9=5/12−2/9=5/12+−2/9=15/36+−8/36=15+−8/36=7/36 (Decimal: 0.194444)
i)7/20−2/15=7/20−2/15=7/20+−2/15=21/60+−8/60=21+−8/60=13/60 (Decimal: 0.216667)
j)5/6−1/8=5/6−1/8=5/6+−1/8=20/24+−3/24=20+−3/24=17/24 (Decimal: 0.708333)