Add 42/10 and 84/81
1st number: 4 2/10, 2nd number: 1 3/81
42/10 + 84/81 is 707/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
42/10 = 42 × 81/10 × 81 = 3402/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
84/81 = 84 × 10/81 × 10 = 840/810 - Add the two like fractions:
3402/810 + 840/810 = 3402 + 840/810 = 4242/810 - 4242/810 simplified gives 707/135
- So, 42/10 + 84/81 = 707/135
In mixed form: 532/135
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