Add 21/72 and 56/10
1st number: 21/72, 2nd number: 5 6/10
21/72 + 56/10 is 707/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 10 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
21/72 = 21 × 5/72 × 5 = 105/360 - Likewise, for the 2nd fraction, since 10 × 36 = 360,
56/10 = 56 × 36/10 × 36 = 2016/360 - Add the two like fractions:
105/360 + 2016/360 = 105 + 2016/360 = 2121/360 - 2121/360 simplified gives 707/120
- So, 21/72 + 56/10 = 707/120
In mixed form: 5107/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/72+56/10 21/72+56/20 63/72+56/10 21/72+56/30 21/72+56/50 21/72+56/70