Add 15/18 and 84/72
1st number: 15/18, 2nd number: 1 12/72
15/18 + 84/72 is 2/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
15/18 = 15 × 4/18 × 4 = 60/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
84/72 = 84 × 1/72 × 1 = 84/72 - Add the two like fractions:
60/72 + 84/72 = 60 + 84/72 = 144/72 - 144/72 simplified gives 2/1
- So, 15/18 + 84/72 = 2/1
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