Add 40/28 and 45/42
1st number: 1 12/28, 2nd number: 1 3/42
40/28 + 45/42 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
40/28 = 40 × 3/28 × 3 = 120/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
45/42 = 45 × 2/42 × 2 = 90/84 - Add the two like fractions:
120/84 + 90/84 = 120 + 90/84 = 210/84 - 210/84 simplified gives 5/2
- So, 40/28 + 45/42 = 5/2
In mixed form: 21/2
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