Add 3/24 and 12/21
3/24 + 12/21 is 39/56.
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,
3/24 = 3 × 7/24 × 7 = 21/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
12/21 = 12 × 8/21 × 8 = 96/168 - Add the two like fractions:
21/168 + 96/168 = 21 + 96/168 = 117/168 - 117/168 simplified gives 39/56
- So, 3/24 + 12/21 = 39/56
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