Add 42/4 and 72/63
1st number: 10 2/4, 2nd number: 1 9/63
42/4 + 72/63 is 163/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 4 × 63 = 252,
42/4 = 42 × 63/4 × 63 = 2646/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
72/63 = 72 × 4/63 × 4 = 288/252 - Add the two like fractions:
2646/252 + 288/252 = 2646 + 288/252 = 2934/252 - 2934/252 simplified gives 163/14
- So, 42/4 + 72/63 = 163/14
In mixed form: 119/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4+72/63 42/8+72/63 42/12+72/63 42/20+72/63 42/28+72/63