Add 15/18 and 70/90
15/18 + 70/90 is 29/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
15/18 = 15 × 5/18 × 5 = 75/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
70/90 = 70 × 1/90 × 1 = 70/90 - Add the two like fractions:
75/90 + 70/90 = 75 + 70/90 = 145/90 - 145/90 simplified gives 29/18
- So, 15/18 + 70/90 = 29/18
In mixed form: 111/18
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