Add 9/20 and 63/35
1st number: 9/20, 2nd number: 1 28/35
9/20 + 63/35 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
9/20 = 9 × 7/20 × 7 = 63/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
63/35 = 63 × 4/35 × 4 = 252/140 - Add the two like fractions:
63/140 + 252/140 = 63 + 252/140 = 315/140 - 315/140 simplified gives 9/4
- So, 9/20 + 63/35 = 9/4
In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/20+63/35 9/40+63/35 9/20+63/70 27/20+63/35 9/60+63/35 45/20+63/35 63/20+63/35