Add 60/63 and 25/21
1st number: 60/63, 2nd number: 1 4/21
60/63 + 25/21 is 15/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
60/63 = 60 × 1/63 × 1 = 60/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
25/21 = 25 × 3/21 × 3 = 75/63 - Add the two like fractions:
60/63 + 75/63 = 60 + 75/63 = 135/63 - 135/63 simplified gives 15/7
- So, 60/63 + 25/21 = 15/7
In mixed form: 21/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/63+50/21 60/63+25/42 60/63+75/21 60/63+25/63