Add 80/63 and 35/45
1st number: 1 17/63, 2nd number: 35/45
80/63 + 35/45 is 43/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
80/63 = 80 × 5/63 × 5 = 400/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
35/45 = 35 × 7/45 × 7 = 245/315 - Add the two like fractions:
400/315 + 245/315 = 400 + 245/315 = 645/315 - 645/315 simplified gives 43/21
- So, 80/63 + 35/45 = 43/21
In mixed form: 21/21
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