Add 7/24 and 20/21
7/24 + 20/21 is 209/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
7/24 = 7 × 7/24 × 7 = 49/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
20/21 = 20 × 8/21 × 8 = 160/168 - Add the two like fractions:
49/168 + 160/168 = 49 + 160/168 = 209/168 - So, 7/24 + 20/21 = 209/168
In mixed form: 141/168
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