Add 40/63 and 45/81
40/63 + 45/81 is 25/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 63 × 9 = 567,
40/63 = 40 × 9/63 × 9 = 360/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
45/81 = 45 × 7/81 × 7 = 315/567 - Add the two like fractions:
360/567 + 315/567 = 360 + 315/567 = 675/567 - 675/567 simplified gives 25/21
- So, 40/63 + 45/81 = 25/21
In mixed form: 14/21
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