Add 7/60 and 72/63
1st number: 7/60, 2nd number: 1 9/63
7/60 + 72/63 is 529/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 60 × 21 = 1260,
7/60 = 7 × 21/60 × 21 = 147/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
72/63 = 72 × 20/63 × 20 = 1440/1260 - Add the two like fractions:
147/1260 + 1440/1260 = 147 + 1440/1260 = 1587/1260 - 1587/1260 simplified gives 529/420
- So, 7/60 + 72/63 = 529/420
In mixed form: 1109/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/60+72/63 21/60+72/63 35/60+72/63 49/60+72/63