Add 81/10 and 15/84
1st number: 8 1/10, 2nd number: 15/84
81/10 + 15/84 is 1159/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
81/10 = 81 × 42/10 × 42 = 3402/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
15/84 = 15 × 5/84 × 5 = 75/420 - Add the two like fractions:
3402/420 + 75/420 = 3402 + 75/420 = 3477/420 - 3477/420 simplified gives 1159/140
- So, 81/10 + 15/84 = 1159/140
In mixed form: 839/140
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