Add 72/10 and 21/63
1st number: 7 2/10, 2nd number: 21/63
72/10 + 21/63 is 113/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 10 × 63 = 630,
72/10 = 72 × 63/10 × 63 = 4536/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
21/63 = 21 × 10/63 × 10 = 210/630 - Add the two like fractions:
4536/630 + 210/630 = 4536 + 210/630 = 4746/630 - 4746/630 simplified gives 113/15
- So, 72/10 + 21/63 = 113/15
In mixed form: 78/15
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