Add 27/56 and 3/70
27/56 + 3/70 is 21/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
27/56 = 27 × 5/56 × 5 = 135/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
3/70 = 3 × 4/70 × 4 = 12/280 - Add the two like fractions:
135/280 + 12/280 = 135 + 12/280 = 147/280 - 147/280 simplified gives 21/40
- So, 27/56 + 3/70 = 21/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56+3/70 27/56+6/70 81/56+3/70 27/56+9/70 27/56+15/70 27/56+21/70