Add 15/42 and 63/32
1st number: 15/42, 2nd number: 1 31/32
15/42 + 63/32 is 521/224.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 42 × 16 = 672,
15/42 = 15 × 16/42 × 16 = 240/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
63/32 = 63 × 21/32 × 21 = 1323/672 - Add the two like fractions:
240/672 + 1323/672 = 240 + 1323/672 = 1563/672 - 1563/672 simplified gives 521/224
- So, 15/42 + 63/32 = 521/224
In mixed form: 273/224
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/42+63/32 15/84+63/32 15/42+63/64 45/42+63/32 15/42+63/96 75/42+63/32