Add 21/2 and 72/4
1st number: 10 1/2, 2nd number: 18 0/4
21/2 + 72/4 is 57/2.
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,
72/4 = 72 × 1/4 × 1 = 72/4 - Add the two like fractions:
42/4 + 72/4 = 42 + 72/4 = 114/4 - 114/4 simplified gives 57/2
- So, 21/2 + 72/4 = 57/2
In mixed form: 281/2
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