Add 72/15 and 84/90
1st number: 4 12/15, 2nd number: 84/90
72/15 + 84/90 is 86/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
72/15 = 72 × 6/15 × 6 = 432/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
84/90 = 84 × 1/90 × 1 = 84/90 - Add the two like fractions:
432/90 + 84/90 = 432 + 84/90 = 516/90 - 516/90 simplified gives 86/15
- So, 72/15 + 84/90 = 86/15
In mixed form: 511/15
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