Add 84/15 and 15/12
1st number: 5 9/15, 2nd number: 1 3/12
84/15 + 15/12 is 137/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
84/15 = 84 × 4/15 × 4 = 336/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
15/12 = 15 × 5/12 × 5 = 75/60 - Add the two like fractions:
336/60 + 75/60 = 336 + 75/60 = 411/60 - 411/60 simplified gives 137/20
- So, 84/15 + 15/12 = 137/20
In mixed form: 617/20
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