Add 20/28 and 90/42
1st number: 20/28, 2nd number: 2 6/42
20/28 + 90/42 is 20/7.
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,
20/28 = 20 × 3/28 × 3 = 60/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
90/42 = 90 × 2/42 × 2 = 180/84 - Add the two like fractions:
60/84 + 180/84 = 60 + 180/84 = 240/84 - 240/84 simplified gives 20/7
- So, 20/28 + 90/42 = 20/7
In mixed form: 26/7
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