Add 20/24 and 27/21
1st number: 20/24, 2nd number: 1 6/21
20/24 + 27/21 is 89/42.
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,
20/24 = 20 × 7/24 × 7 = 140/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
27/21 = 27 × 8/21 × 8 = 216/168 - Add the two like fractions:
140/168 + 216/168 = 140 + 216/168 = 356/168 - 356/168 simplified gives 89/42
- So, 20/24 + 27/21 = 89/42
In mixed form: 25/42
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