Add 15/60 and 75/90
15/60 + 75/90 is 13/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
15/60 = 15 × 3/60 × 3 = 45/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
75/90 = 75 × 2/90 × 2 = 150/180 - Add the two like fractions:
45/180 + 150/180 = 45 + 150/180 = 195/180 - 195/180 simplified gives 13/12
- So, 15/60 + 75/90 = 13/12
In mixed form: 11/12
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