Add 21/14 and 18/24
1st number: 1 7/14, 2nd number: 18/24
21/14 + 18/24 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 14 × 12 = 168,
21/14 = 21 × 12/14 × 12 = 252/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
18/24 = 18 × 7/24 × 7 = 126/168 - Add the two like fractions:
252/168 + 126/168 = 252 + 126/168 = 378/168 - 378/168 simplified gives 9/4
- So, 21/14 + 18/24 = 9/4
In mixed form: 21/4
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