Add 72/63 and 40/5
1st number: 1 9/63, 2nd number: 8 0/5
72/63 + 40/5 is 64/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 5 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
72/63 = 72 × 5/63 × 5 = 360/315 - Likewise, for the 2nd fraction, since 5 × 63 = 315,
40/5 = 40 × 63/5 × 63 = 2520/315 - Add the two like fractions:
360/315 + 2520/315 = 360 + 2520/315 = 2880/315 - 2880/315 simplified gives 64/7
- So, 72/63 + 40/5 = 64/7
In mixed form: 91/7
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