Add 40/42 and 84/28
1st number: 40/42, 2nd number: 3 0/28
40/42 + 84/28 is 83/21.
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,
84/28 = 84 × 3/28 × 3 = 252/84 - Add the two like fractions:
80/84 + 252/84 = 80 + 252/84 = 332/84 - 332/84 simplified gives 83/21
- So, 40/42 + 84/28 = 83/21
In mixed form: 320/21
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