Add 72/63 and 20/5
1st number: 1 9/63, 2nd number: 4 0/5
72/63 + 20/5 is 36/7.
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,
20/5 = 20 × 63/5 × 63 = 1260/315 - Add the two like fractions:
360/315 + 1260/315 = 360 + 1260/315 = 1620/315 - 1620/315 simplified gives 36/7
- So, 72/63 + 20/5 = 36/7
In mixed form: 51/7
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