Add 90/21 and 70/56
1st number: 4 6/21, 2nd number: 1 14/56
90/21 + 70/56 is 155/28.
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,
70/56 = 70 × 3/56 × 3 = 210/168 - Add the two like fractions:
720/168 + 210/168 = 720 + 210/168 = 930/168 - 930/168 simplified gives 155/28
- So, 90/21 + 70/56 = 155/28
In mixed form: 515/28
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