Add 72/32 and 2/21
1st number: 2 8/32, 2nd number: 2/21
72/32 + 2/21 is 197/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 21 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 32 × 21 = 672,
72/32 = 72 × 21/32 × 21 = 1512/672 - Likewise, for the 2nd fraction, since 21 × 32 = 672,
2/21 = 2 × 32/21 × 32 = 64/672 - Add the two like fractions:
1512/672 + 64/672 = 1512 + 64/672 = 1576/672 - 1576/672 simplified gives 197/84
- So, 72/32 + 2/21 = 197/84
In mixed form: 229/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/32+4/21 72/64+2/21 72/32+2/42 72/32+6/21 72/96+2/21 72/32+2/63 72/32+10/21 72/32+14/21