Add 21/24 and 70/36
1st number: 21/24, 2nd number: 1 34/36
21/24 + 70/36 is 203/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
21/24 = 21 × 3/24 × 3 = 63/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
70/36 = 70 × 2/36 × 2 = 140/72 - Add the two like fractions:
63/72 + 140/72 = 63 + 140/72 = 203/72 - So, 21/24 + 70/36 = 203/72
In mixed form: 259/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/24+70/36 21/48+70/36 21/24+70/72 63/24+70/36 21/72+70/36