Add 21/14 and 21/28
1st number: 1 7/14, 2nd number: 21/28
21/14 + 21/28 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 14 × 2 = 28,
21/14 = 21 × 2/14 × 2 = 42/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
21/28 = 21 × 1/28 × 1 = 21/28 - Add the two like fractions:
42/28 + 21/28 = 42 + 21/28 = 63/28 - 63/28 simplified gives 9/4
- So, 21/14 + 21/28 = 9/4
In mixed form: 21/4
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Related: 42/14+21/28 21/14+42/28 21/28+21/28 21/14+21/56 63/14+21/28 21/14+63/28 21/42+21/28 21/14+21/84 21/70+21/28 21/98+21/28