Add 12/21 and 60/63
12/21 + 60/63 is 32/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
12/21 = 12 × 3/21 × 3 = 36/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
60/63 = 60 × 1/63 × 1 = 60/63 - Add the two like fractions:
36/63 + 60/63 = 36 + 60/63 = 96/63 - 96/63 simplified gives 32/21
- So, 12/21 + 60/63 = 32/21
In mixed form: 111/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/21+60/63 12/42+60/63 36/21+60/63 12/63+60/63 60/21+60/63 84/21+60/63