Add 21/2 and 84/4
1st number: 10 1/2, 2nd number: 21 0/4
21/2 + 84/4 is 63/2.
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,
84/4 = 84 × 1/4 × 1 = 84/4 - Add the two like fractions:
42/4 + 84/4 = 42 + 84/4 = 126/4 - 126/4 simplified gives 63/2
- So, 21/2 + 84/4 = 63/2
In mixed form: 311/2
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