Add 72/12 and 63/18
1st number: 6 0/12, 2nd number: 3 9/18
72/12 + 63/18 is 19/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
72/12 = 72 × 3/12 × 3 = 216/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
63/18 = 63 × 2/18 × 2 = 126/36 - Add the two like fractions:
216/36 + 126/36 = 216 + 126/36 = 342/36 - 342/36 simplified gives 19/2
- So, 72/12 + 63/18 = 19/2
In mixed form: 91/2
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