Add 32/21 and 45/81
1st number: 1 11/21, 2nd number: 45/81
32/21 + 45/81 is 131/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 21 × 27 = 567,
32/21 = 32 × 27/21 × 27 = 864/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
45/81 = 45 × 7/81 × 7 = 315/567 - Add the two like fractions:
864/567 + 315/567 = 864 + 315/567 = 1179/567 - 1179/567 simplified gives 131/63
- So, 32/21 + 45/81 = 131/63
In mixed form: 25/63
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