Add 20/56 and 90/42
1st number: 20/56, 2nd number: 2 6/42
20/56 + 90/42 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
20/56 = 20 × 3/56 × 3 = 60/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
90/42 = 90 × 4/42 × 4 = 360/168 - Add the two like fractions:
60/168 + 360/168 = 60 + 360/168 = 420/168 - 420/168 simplified gives 5/2
- So, 20/56 + 90/42 = 5/2
In mixed form: 21/2
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