Add 90/40 and 10/81
1st number: 2 10/40, 2nd number: 10/81
90/40 + 10/81 is 769/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 81 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 40 × 81 = 3240,
90/40 = 90 × 81/40 × 81 = 7290/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
10/81 = 10 × 40/81 × 40 = 400/3240 - Add the two like fractions:
7290/3240 + 400/3240 = 7290 + 400/3240 = 7690/3240 - 7690/3240 simplified gives 769/324
- So, 90/40 + 10/81 = 769/324
In mixed form: 2121/324
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