Add 63/28 and 3/20
1st number: 2 7/28, 2nd number: 3/20
63/28 + 3/20 is 12/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
63/28 = 63 × 5/28 × 5 = 315/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
3/20 = 3 × 7/20 × 7 = 21/140 - Add the two like fractions:
315/140 + 21/140 = 315 + 21/140 = 336/140 - 336/140 simplified gives 12/5
- So, 63/28 + 3/20 = 12/5
In mixed form: 22/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/28+6/20 63/56+3/20 63/28+3/40 63/28+9/20 63/84+3/20 63/28+3/60 63/28+15/20 63/28+21/20