Add 84/63 and 28/49
1st number: 1 21/63, 2nd number: 28/49
84/63 + 28/49 is 40/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 63 × 7 = 441,
84/63 = 84 × 7/63 × 7 = 588/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
28/49 = 28 × 9/49 × 9 = 252/441 - Add the two like fractions:
588/441 + 252/441 = 588 + 252/441 = 840/441 - 840/441 simplified gives 40/21
- So, 84/63 + 28/49 = 40/21
In mixed form: 119/21
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