Add 90/21 and 40/56
1st number: 4 6/21, 2nd number: 40/56
90/21 + 40/56 is 5/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
90/21 = 90 × 8/21 × 8 = 720/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
40/56 = 40 × 3/56 × 3 = 120/168 - Add the two like fractions:
720/168 + 120/168 = 720 + 120/168 = 840/168 - 840/168 simplified gives 5/1
- So, 90/21 + 40/56 = 5/1
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