Add 84/12 and 21/10
1st number: 7 0/12, 2nd number: 2 1/10
84/12 + 21/10 is 91/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 10 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
84/12 = 84 × 5/12 × 5 = 420/60 - Likewise, for the 2nd fraction, since 10 × 6 = 60,
21/10 = 21 × 6/10 × 6 = 126/60 - Add the two like fractions:
420/60 + 126/60 = 420 + 126/60 = 546/60 - 546/60 simplified gives 91/10
- So, 84/12 + 21/10 = 91/10
In mixed form: 91/10
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