Add 72/16 and 21/4
1st number: 4 8/16, 2nd number: 5 1/4
72/16 + 21/4 is 39/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 4 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 16 × 1 = 16,
72/16 = 72 × 1/16 × 1 = 72/16 - Likewise, for the 2nd fraction, since 4 × 4 = 16,
21/4 = 21 × 4/4 × 4 = 84/16 - Add the two like fractions:
72/16 + 84/16 = 72 + 84/16 = 156/16 - 156/16 simplified gives 39/4
- So, 72/16 + 21/4 = 39/4
In mixed form: 93/4
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