Add 90/12 and 63/9
1st number: 7 6/12, 2nd number: 7 0/9
90/12 + 63/9 is 29/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
90/12 = 90 × 3/12 × 3 = 270/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
63/9 = 63 × 4/9 × 4 = 252/36 - Add the two like fractions:
270/36 + 252/36 = 270 + 252/36 = 522/36 - 522/36 simplified gives 29/2
- So, 90/12 + 63/9 = 29/2
In mixed form: 141/2
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