Add 25/81 and 9/40
25/81 + 9/40 is 1729/3240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 81 × 40 = 3240,
25/81 = 25 × 40/81 × 40 = 1000/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
9/40 = 9 × 81/40 × 81 = 729/3240 - Add the two like fractions:
1000/3240 + 729/3240 = 1000 + 729/3240 = 1729/3240 - So, 25/81 + 9/40 = 1729/3240
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