Add 90/42 and 45/28
1st number: 2 6/42, 2nd number: 1 17/28
90/42 + 45/28 is 15/4.
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,
90/42 = 90 × 2/42 × 2 = 180/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
45/28 = 45 × 3/28 × 3 = 135/84 - Add the two like fractions:
180/84 + 135/84 = 180 + 135/84 = 315/84 - 315/84 simplified gives 15/4
- So, 90/42 + 45/28 = 15/4
In mixed form: 33/4
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