Add 15/4 and 80/60
1st number: 3 3/4, 2nd number: 1 20/60
15/4 + 80/60 is 61/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
15/4 = 15 × 15/4 × 15 = 225/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
80/60 = 80 × 1/60 × 1 = 80/60 - Add the two like fractions:
225/60 + 80/60 = 225 + 80/60 = 305/60 - 305/60 simplified gives 61/12
- So, 15/4 + 80/60 = 61/12
In mixed form: 51/12
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