Add 84/15 and 42/12
1st number: 5 9/15, 2nd number: 3 6/12
84/15 + 42/12 is 91/10.
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,
42/12 = 42 × 5/12 × 5 = 210/60 - Add the two like fractions:
336/60 + 210/60 = 336 + 210/60 = 546/60 - 546/60 simplified gives 91/10
- So, 84/15 + 42/12 = 91/10
In mixed form: 91/10
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