Add 20/84 and 21/24
20/84 + 21/24 is 187/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
20/84 = 20 × 2/84 × 2 = 40/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
21/24 = 21 × 7/24 × 7 = 147/168 - Add the two like fractions:
40/168 + 147/168 = 40 + 147/168 = 187/168 - So, 20/84 + 21/24 = 187/168
In mixed form: 119/168
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