Add 42/60 and 7/63
42/60 + 7/63 is 73/90.
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,
42/60 = 42 × 21/60 × 21 = 882/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
7/63 = 7 × 20/63 × 20 = 140/1260 - Add the two like fractions:
882/1260 + 140/1260 = 882 + 140/1260 = 1022/1260 - 1022/1260 simplified gives 73/90
- So, 42/60 + 7/63 = 73/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60+7/63 42/60+14/63 42/60+21/63 42/60+35/63 42/60+49/63