Add 21/2 and 20/4
1st number: 10 1/2, 2nd number: 5 0/4
21/2 + 20/4 is 31/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 4 is 4
Next, find the equivalent fraction of both fractional numbers with denominator 4 - For the 1st fraction, since 2 × 2 = 4,
21/2 = 21 × 2/2 × 2 = 42/4 - Likewise, for the 2nd fraction, since 4 × 1 = 4,
20/4 = 20 × 1/4 × 1 = 20/4 - Add the two like fractions:
42/4 + 20/4 = 42 + 20/4 = 62/4 - 62/4 simplified gives 31/2
- So, 21/2 + 20/4 = 31/2
In mixed form: 151/2
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