Add 21/16 and 18/7
1st number: 1 5/16, 2nd number: 2 4/7
21/16 + 18/7 is 435/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 7 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
21/16 = 21 × 7/16 × 7 = 147/112 - Likewise, for the 2nd fraction, since 7 × 16 = 112,
18/7 = 18 × 16/7 × 16 = 288/112 - Add the two like fractions:
147/112 + 288/112 = 147 + 288/112 = 435/112 - So, 21/16 + 18/7 = 435/112
In mixed form: 399/112
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