Add 72/60 and 20/63
1st number: 1 12/60, 2nd number: 20/63
72/60 + 20/63 is 478/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 60 × 21 = 1260,
72/60 = 72 × 21/60 × 21 = 1512/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
20/63 = 20 × 20/63 × 20 = 400/1260 - Add the two like fractions:
1512/1260 + 400/1260 = 1512 + 400/1260 = 1912/1260 - 1912/1260 simplified gives 478/315
- So, 72/60 + 20/63 = 478/315
In mixed form: 1163/315
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