3/5 + 1/5 =
2/5+5/9=
9/16+7/16=
2/3+4/5=
3/5+7/8=
2/3+7/12=
25/48+11/24=
Nhanh giùm ạ -.-
3/5 + 1/5 = 2/5+5/9= 9/16+7/16= 2/3+4/5= 3/5+7/8= 2/3+7/12= 25/48+11/24= Nhanh giùm ạ -.-
By Valentina
By Valentina
3/5 + 1/5 =
2/5+5/9=
9/16+7/16=
2/3+4/5=
3/5+7/8=
2/3+7/12=
25/48+11/24=
Nhanh giùm ạ -.-
`3/5 + 1/5 = (3 + 1)/5 = 4/5`
`2/5 + 5/9 = 18/45 + 25/45 = 43/45`
`9/16 + 7/16 = (9 + 7)/16 = 16/16 = 1`
`2/3 + 4/5 = 10/15 + 12/15 = 22/15`
`3/5 + 7/8 = 24/40 + 35/40 = 59/40`
`2/3 + 7/12 = 8/12 + 7/12 = 15/12`
`25/48 + 11/24 = 25/48 + 22/48 = 47/48`
3/5+1/5=(3+1)/5=4/5
2/5+5/9=2*9/45+5*5/45=18/45+25/45=43/45
9/16+7/16=9+7/16=16/16=1
2/3+4/5=2*5/15+3*4/15=10/15+12/15=22/15
3/5+7/8=8*3/40+7*5/40=24/40+35/40=59/40
2/3+7/12=4*2/12+7/12=8/12+7/12=15/12
25/48+11/24=25/48+11*2/48=25/48+22/48=47/48
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