Add 21/14 and 12/16
1st number: 1 7/14, 2nd number: 12/16
21/14 + 12/16 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 14 × 8 = 112,
21/14 = 21 × 8/14 × 8 = 168/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
12/16 = 12 × 7/16 × 7 = 84/112 - Add the two like fractions:
168/112 + 84/112 = 168 + 84/112 = 252/112 - 252/112 simplified gives 9/4
- So, 21/14 + 12/16 = 9/4
In mixed form: 21/4
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