Add 21/18 and 7/16
1st number: 1 3/18, 2nd number: 7/16
21/18 + 7/16 is 77/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
21/18 = 21 × 8/18 × 8 = 168/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
7/16 = 7 × 9/16 × 9 = 63/144 - Add the two like fractions:
168/144 + 63/144 = 168 + 63/144 = 231/144 - 231/144 simplified gives 77/48
- So, 21/18 + 7/16 = 77/48
In mixed form: 129/48
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