Add 8/20 and 8/7
1st number: 8/20, 2nd number: 1 1/7
8/20 + 8/7 is 54/35.
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,
8/7 = 8 × 20/7 × 20 = 160/140 - Add the two like fractions:
56/140 + 160/140 = 56 + 160/140 = 216/140 - 216/140 simplified gives 54/35
- So, 8/20 + 8/7 = 54/35
In mixed form: 119/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20+8/7 8/20+16/7 8/40+8/7 8/20+8/14 24/20+8/7 8/20+24/7 8/60+8/7 8/20+8/21 40/20+8/7 8/20+40/7 8/20+8/35 56/20+8/7 8/20+56/7 8/20+8/49