Add 21/14 and 90/12
1st number: 1 7/14, 2nd number: 7 6/12
21/14 + 90/12 is 9/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
21/14 = 21 × 6/14 × 6 = 126/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84 - Add the two like fractions:
126/84 + 630/84 = 126 + 630/84 = 756/84 - 756/84 simplified gives 9/1
- So, 21/14 + 90/12 = 9/1
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