Add 21/14 and 45/28
1st number: 1 7/14, 2nd number: 1 17/28
21/14 + 45/28 is 87/28.
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,
45/28 = 45 × 1/28 × 1 = 45/28 - Add the two like fractions:
42/28 + 45/28 = 42 + 45/28 = 87/28 - So, 21/14 + 45/28 = 87/28
In mixed form: 33/28
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