Add 60/7 and 70/20
1st number: 8 4/7, 2nd number: 3 10/20
60/7 + 70/20 is 169/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
60/7 = 60 × 20/7 × 20 = 1200/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
70/20 = 70 × 7/20 × 7 = 490/140 - Add the two like fractions:
1200/140 + 490/140 = 1200 + 490/140 = 1690/140 - 1690/140 simplified gives 169/14
- So, 60/7 + 70/20 = 169/14
In mixed form: 121/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/14+70/20 60/7+70/40 60/21+70/20 60/7+70/60 60/35+70/20 60/49+70/20