Add 18/15 and 84/72
1st number: 1 3/15, 2nd number: 1 12/72
18/15 + 84/72 is 71/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 15 × 24 = 360,
18/15 = 18 × 24/15 × 24 = 432/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
84/72 = 84 × 5/72 × 5 = 420/360 - Add the two like fractions:
432/360 + 420/360 = 432 + 420/360 = 852/360 - 852/360 simplified gives 71/30
- So, 18/15 + 84/72 = 71/30
In mixed form: 211/30
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