Add 42/10 and 75/81
1st number: 4 2/10, 2nd number: 75/81
42/10 + 75/81 is 692/135.
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,
75/81 = 75 × 10/81 × 10 = 750/810 - Add the two like fractions:
3402/810 + 750/810 = 3402 + 750/810 = 4152/810 - 4152/810 simplified gives 692/135
- So, 42/10 + 75/81 = 692/135
In mixed form: 517/135
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