Add 42/2 and 21/28
1st number: 21 0/2, 2nd number: 21/28
42/2 + 21/28 is 87/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 2 × 14 = 28,
42/2 = 42 × 14/2 × 14 = 588/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
21/28 = 21 × 1/28 × 1 = 21/28 - Add the two like fractions:
588/28 + 21/28 = 588 + 21/28 = 609/28 - 609/28 simplified gives 87/4
- So, 42/2 + 21/28 = 87/4
In mixed form: 213/4
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