Add 20/42 and 63/32
1st number: 20/42, 2nd number: 1 31/32
20/42 + 63/32 is 1643/672.
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,
20/42 = 20 × 16/42 × 16 = 320/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
63/32 = 63 × 21/32 × 21 = 1323/672 - Add the two like fractions:
320/672 + 1323/672 = 320 + 1323/672 = 1643/672 - So, 20/42 + 63/32 = 1643/672
In mixed form: 2299/672
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/42+63/32 20/84+63/32 20/42+63/64 60/42+63/32 20/42+63/96