Add 63/42 and 3/60
1st number: 1 21/42, 2nd number: 3/60
63/42 + 3/60 is 31/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
63/42 = 63 × 10/42 × 10 = 630/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
3/60 = 3 × 7/60 × 7 = 21/420 - Add the two like fractions:
630/420 + 21/420 = 630 + 21/420 = 651/420 - 651/420 simplified gives 31/20
- So, 63/42 + 3/60 = 31/20
In mixed form: 111/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/42+6/60 63/84+3/60 63/42+9/60 63/42+15/60 63/42+21/60