Add 12/9 and 21/16
1st number: 1 3/9, 2nd number: 1 5/16
12/9 + 21/16 is 127/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 9 × 16 = 144,
12/9 = 12 × 16/9 × 16 = 192/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
21/16 = 21 × 9/16 × 9 = 189/144 - Add the two like fractions:
192/144 + 189/144 = 192 + 189/144 = 381/144 - 381/144 simplified gives 127/48
- So, 12/9 + 21/16 = 127/48
In mixed form: 231/48
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