Add 81/15 and 70/63
1st number: 5 6/15, 2nd number: 1 7/63
81/15 + 70/63 is 293/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
81/15 = 81 × 21/15 × 21 = 1701/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
70/63 = 70 × 5/63 × 5 = 350/315 - Add the two like fractions:
1701/315 + 350/315 = 1701 + 350/315 = 2051/315 - 2051/315 simplified gives 293/45
- So, 81/15 + 70/63 = 293/45
In mixed form: 623/45
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