Add 63/20 and 72/35
1st number: 3 3/20, 2nd number: 2 2/35
63/20 + 72/35 is 729/140.
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,
63/20 = 63 × 7/20 × 7 = 441/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
72/35 = 72 × 4/35 × 4 = 288/140 - Add the two like fractions:
441/140 + 288/140 = 441 + 288/140 = 729/140 - So, 63/20 + 72/35 = 729/140
In mixed form: 529/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/40+72/35 63/20+72/70 63/60+72/35