Add 9/21 and 20/32
9/21 + 20/32 is 59/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 21 × 32 = 672,
9/21 = 9 × 32/21 × 32 = 288/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
20/32 = 20 × 21/32 × 21 = 420/672 - Add the two like fractions:
288/672 + 420/672 = 288 + 420/672 = 708/672 - 708/672 simplified gives 59/56
- So, 9/21 + 20/32 = 59/56
In mixed form: 13/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21+20/32 9/21+40/32 9/42+20/32 9/21+20/64 27/21+20/32 9/21+60/32 9/63+20/32 9/21+20/96 45/21+20/32 63/21+20/32