Add 21/56 and 35/10
1st number: 21/56, 2nd number: 3 5/10
21/56 + 35/10 is 31/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 10 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Likewise, for the 2nd fraction, since 10 × 28 = 280,
35/10 = 35 × 28/10 × 28 = 980/280 - Add the two like fractions:
105/280 + 980/280 = 105 + 980/280 = 1085/280 - 1085/280 simplified gives 31/8
- So, 21/56 + 35/10 = 31/8
In mixed form: 37/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/56+35/10 21/56+70/10 21/56+35/20 63/56+35/10 21/56+35/30 21/56+35/50 21/56+35/70