Add 21/35 and 10/56
21/35 + 10/56 is 109/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
21/35 = 21 × 8/35 × 8 = 168/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
10/56 = 10 × 5/56 × 5 = 50/280 - Add the two like fractions:
168/280 + 50/280 = 168 + 50/280 = 218/280 - 218/280 simplified gives 109/140
- So, 21/35 + 10/56 = 109/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35+10/56 21/35+20/56 21/70+10/56 63/35+10/56 21/35+30/56 21/35+50/56 21/35+70/56