Add 90/5 and 15/12
1st number: 18 0/5, 2nd number: 1 3/12
90/5 + 15/12 is 77/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
90/5 = 90 × 12/5 × 12 = 1080/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
15/12 = 15 × 5/12 × 5 = 75/60 - Add the two like fractions:
1080/60 + 75/60 = 1080 + 75/60 = 1155/60 - 1155/60 simplified gives 77/4
- So, 90/5 + 15/12 = 77/4
In mixed form: 191/4
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