Add 81/9 and 21/49
1st number: 9 0/9, 2nd number: 21/49
81/9 + 21/49 is 66/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 9 × 49 = 441,
81/9 = 81 × 49/9 × 49 = 3969/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
21/49 = 21 × 9/49 × 9 = 189/441 - Add the two like fractions:
3969/441 + 189/441 = 3969 + 189/441 = 4158/441 - 4158/441 simplified gives 66/7
- So, 81/9 + 21/49 = 66/7
In mixed form: 93/7
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