Add 54/81 and 42/10
1st number: 54/81, 2nd number: 4 2/10
54/81 + 42/10 is 73/15.
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,
54/81 = 54 × 10/81 × 10 = 540/810 - Likewise, for the 2nd fraction, since 10 × 81 = 810,
42/10 = 42 × 81/10 × 81 = 3402/810 - Add the two like fractions:
540/810 + 3402/810 = 540 + 3402/810 = 3942/810 - 3942/810 simplified gives 73/15
- So, 54/81 + 42/10 = 73/15
In mixed form: 413/15
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