Add 28/24 and 18/21
1st number: 1 4/24, 2nd number: 18/21
28/24 + 18/21 is 85/42.
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,
28/24 = 28 × 7/24 × 7 = 196/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
18/21 = 18 × 8/21 × 8 = 144/168 - Add the two like fractions:
196/168 + 144/168 = 196 + 144/168 = 340/168 - 340/168 simplified gives 85/42
- So, 28/24 + 18/21 = 85/42
In mixed form: 21/42
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