Add 45/28 and 20/42
1st number: 1 17/28, 2nd number: 20/42
45/28 + 20/42 is 25/12.
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,
45/28 = 45 × 3/28 × 3 = 135/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
20/42 = 20 × 2/42 × 2 = 40/84 - Add the two like fractions:
135/84 + 40/84 = 135 + 40/84 = 175/84 - 175/84 simplified gives 25/12
- So, 45/28 + 20/42 = 25/12
In mixed form: 21/12
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