Add 16/21 and 12/18
16/21 + 12/18 is 10/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
16/21 = 16 × 6/21 × 6 = 96/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
12/18 = 12 × 7/18 × 7 = 84/126 - Add the two like fractions:
96/126 + 84/126 = 96 + 84/126 = 180/126 - 180/126 simplified gives 10/7
- So, 16/21 + 12/18 = 10/7
In mixed form: 13/7
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