Add 70/15 and 56/7
1st number: 4 10/15, 2nd number: 8 0/7
70/15 + 56/7 is 38/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
70/15 = 70 × 7/15 × 7 = 490/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
56/7 = 56 × 15/7 × 15 = 840/105 - Add the two like fractions:
490/105 + 840/105 = 490 + 840/105 = 1330/105 - 1330/105 simplified gives 38/3
- So, 70/15 + 56/7 = 38/3
In mixed form: 122/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30+56/7 70/15+56/14 70/45+56/7 70/15+56/21 70/75+56/7 70/15+56/35 70/15+56/49