Add 1/2 and 21/7
1st number: 1/2, 2nd number: 3 0/7
1/2 + 21/7 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
1/2 = 1 × 7/2 × 7 = 7/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
21/7 = 21 × 2/7 × 2 = 42/14 - Add the two like fractions:
7/14 + 42/14 = 7 + 42/14 = 49/14 - 49/14 simplified gives 7/2
- So, 1/2 + 21/7 = 7/2
In mixed form: 31/2
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