Add 81/70 and 70/9
1st number: 1 11/70, 2nd number: 7 7/9
81/70 + 70/9 is 5629/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
81/70 = 81 × 9/70 × 9 = 729/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
70/9 = 70 × 70/9 × 70 = 4900/630 - Add the two like fractions:
729/630 + 4900/630 = 729 + 4900/630 = 5629/630 - So, 81/70 + 70/9 = 5629/630
In mixed form: 8589/630
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