Add 42/40 and 48/81
1st number: 1 2/40, 2nd number: 48/81
42/40 + 48/81 is 887/540.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 81 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 40 × 81 = 3240,
42/40 = 42 × 81/40 × 81 = 3402/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
48/81 = 48 × 40/81 × 40 = 1920/3240 - Add the two like fractions:
3402/3240 + 1920/3240 = 3402 + 1920/3240 = 5322/3240 - 5322/3240 simplified gives 887/540
- So, 42/40 + 48/81 = 887/540
In mixed form: 1347/540
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