Add 80/63 and 81/70
1st number: 1 17/63, 2nd number: 1 11/70
80/63 + 81/70 is 1529/630.
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,
80/63 = 80 × 10/63 × 10 = 800/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
81/70 = 81 × 9/70 × 9 = 729/630 - Add the two like fractions:
800/630 + 729/630 = 800 + 729/630 = 1529/630 - So, 80/63 + 81/70 = 1529/630
In mixed form: 2269/630
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