Add 15/12 and 90/60
1st number: 1 3/12, 2nd number: 1 30/60
15/12 + 90/60 is 11/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
15/12 = 15 × 5/12 × 5 = 75/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
90/60 = 90 × 1/60 × 1 = 90/60 - Add the two like fractions:
75/60 + 90/60 = 75 + 90/60 = 165/60 - 165/60 simplified gives 11/4
- So, 15/12 + 90/60 = 11/4
In mixed form: 23/4
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