Add 49/56 and 7/70
49/56 + 7/70 is 39/40.
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,
49/56 = 49 × 5/56 × 5 = 245/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
7/70 = 7 × 4/70 × 4 = 28/280 - Add the two like fractions:
245/280 + 28/280 = 245 + 28/280 = 273/280 - 273/280 simplified gives 39/40
- So, 49/56 + 7/70 = 39/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/56+7/70 49/56+14/70 49/56+21/70 49/56+35/70 49/56+49/70