Add 36/70 and 21/36
36/70 + 21/36 is 461/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
36/70 = 36 × 18/70 × 18 = 648/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
21/36 = 21 × 35/36 × 35 = 735/1260 - Add the two like fractions:
648/1260 + 735/1260 = 648 + 735/1260 = 1383/1260 - 1383/1260 simplified gives 461/420
- So, 36/70 + 21/36 = 461/420
In mixed form: 141/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70+21/36 36/70+42/36 36/70+21/72 36/70+63/36