Add 72/12 and 45/18
1st number: 6 0/12, 2nd number: 2 9/18
72/12 + 45/18 is 17/2.
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,
45/18 = 45 × 2/18 × 2 = 90/36 - Add the two like fractions:
216/36 + 90/36 = 216 + 90/36 = 306/36 - 306/36 simplified gives 17/2
- So, 72/12 + 45/18 = 17/2
In mixed form: 81/2
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