Add 90/81 and 24/40
1st number: 1 9/81, 2nd number: 24/40
90/81 + 24/40 is 77/45.
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,
90/81 = 90 × 40/81 × 40 = 3600/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
24/40 = 24 × 81/40 × 81 = 1944/3240 - Add the two like fractions:
3600/3240 + 1944/3240 = 3600 + 1944/3240 = 5544/3240 - 5544/3240 simplified gives 77/45
- So, 90/81 + 24/40 = 77/45
In mixed form: 132/45
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