Add 7/70 and 21/48
7/70 + 21/48 is 43/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 48 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 70 × 24 = 1680,
7/70 = 7 × 24/70 × 24 = 168/1680 - Likewise, for the 2nd fraction, since 48 × 35 = 1680,
21/48 = 21 × 35/48 × 35 = 735/1680 - Add the two like fractions:
168/1680 + 735/1680 = 168 + 735/1680 = 903/1680 - 903/1680 simplified gives 43/80
- So, 7/70 + 21/48 = 43/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/70+21/48 7/70+42/48 7/70+21/96 21/70+21/48 7/70+63/48 35/70+21/48 49/70+21/48