Add 42/40 and 8/81
1st number: 1 2/40, 2nd number: 8/81
42/40 + 8/81 is 1861/1620.
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,
8/81 = 8 × 40/81 × 40 = 320/3240 - Add the two like fractions:
3402/3240 + 320/3240 = 3402 + 320/3240 = 3722/3240 - 3722/3240 simplified gives 1861/1620
- So, 42/40 + 8/81 = 1861/1620
In mixed form: 1241/1620
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