Add 42/81 and 5/10
42/81 + 5/10 is 55/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 10 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
42/81 = 42 × 10/81 × 10 = 420/810 - Likewise, for the 2nd fraction, since 10 × 81 = 810,
5/10 = 5 × 81/10 × 81 = 405/810 - Add the two like fractions:
420/810 + 405/810 = 420 + 405/810 = 825/810 - 825/810 simplified gives 55/54
- So, 42/81 + 5/10 = 55/54
In mixed form: 11/54
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