Add 72/28 and 21/16
1st number: 2 16/28, 2nd number: 1 5/16
72/28 + 21/16 is 435/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 28 × 4 = 112,
72/28 = 72 × 4/28 × 4 = 288/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
21/16 = 21 × 7/16 × 7 = 147/112 - Add the two like fractions:
288/112 + 147/112 = 288 + 147/112 = 435/112 - So, 72/28 + 21/16 = 435/112
In mixed form: 399/112
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