Add 81/9 and 12/7
1st number: 9 0/9, 2nd number: 1 5/7
81/9 + 12/7 is 75/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
81/9 = 81 × 7/9 × 7 = 567/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
12/7 = 12 × 9/7 × 9 = 108/63 - Add the two like fractions:
567/63 + 108/63 = 567 + 108/63 = 675/63 - 675/63 simplified gives 75/7
- So, 81/9 + 12/7 = 75/7
In mixed form: 105/7
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