Add 9/7 and 8/20
1st number: 1 2/7, 2nd number: 8/20
9/7 + 8/20 is 59/35.
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,
9/7 = 9 × 20/7 × 20 = 180/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
8/20 = 8 × 7/20 × 7 = 56/140 - Add the two like fractions:
180/140 + 56/140 = 180 + 56/140 = 236/140 - 236/140 simplified gives 59/35
- So, 9/7 + 8/20 = 59/35
In mixed form: 124/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/7+8/20 9/7+16/20 9/14+8/20 9/7+8/40 27/7+8/20 9/7+24/20 9/21+8/20 9/7+8/60 45/7+8/20 9/7+40/20 9/35+8/20 63/7+8/20 9/7+56/20 9/49+8/20