Add 21/63 and 12/16
21/63 + 12/16 is 13/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 16 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 63 × 16 = 1008,
21/63 = 21 × 16/63 × 16 = 336/1008 - Likewise, for the 2nd fraction, since 16 × 63 = 1008,
12/16 = 12 × 63/16 × 63 = 756/1008 - Add the two like fractions:
336/1008 + 756/1008 = 336 + 756/1008 = 1092/1008 - 1092/1008 simplified gives 13/12
- So, 21/63 + 12/16 = 13/12
In mixed form: 11/12
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