Add 72/63 and 81/70
1st number: 1 9/63, 2nd number: 1 11/70
72/63 + 81/70 is 23/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
72/63 = 72 × 10/63 × 10 = 720/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
81/70 = 81 × 9/70 × 9 = 729/630 - Add the two like fractions:
720/630 + 729/630 = 720 + 729/630 = 1449/630 - 1449/630 simplified gives 23/10
- So, 72/63 + 81/70 = 23/10
In mixed form: 23/10
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