Add 8/20 and 70/7
1st number: 8/20, 2nd number: 10 0/7
8/20 + 70/7 is 52/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
8/20 = 8 × 7/20 × 7 = 56/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
70/7 = 70 × 20/7 × 20 = 1400/140 - Add the two like fractions:
56/140 + 1400/140 = 56 + 1400/140 = 1456/140 - 1456/140 simplified gives 52/5
- So, 8/20 + 70/7 = 52/5
In mixed form: 102/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20+70/7 8/40+70/7 8/20+70/14 24/20+70/7 8/60+70/7 8/20+70/21 40/20+70/7 8/20+70/35 56/20+70/7 8/20+70/49