Add 40/42 and 81/28
1st number: 40/42, 2nd number: 2 25/28
40/42 + 81/28 is 323/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
40/42 = 40 × 2/42 × 2 = 80/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
81/28 = 81 × 3/28 × 3 = 243/84 - Add the two like fractions:
80/84 + 243/84 = 80 + 243/84 = 323/84 - So, 40/42 + 81/28 = 323/84
In mixed form: 371/84
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