Add 90/81 and 18/4
1st number: 1 9/81, 2nd number: 4 2/4
90/81 + 18/4 is 101/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 4 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
90/81 = 90 × 4/81 × 4 = 360/324 - Likewise, for the 2nd fraction, since 4 × 81 = 324,
18/4 = 18 × 81/4 × 81 = 1458/324 - Add the two like fractions:
360/324 + 1458/324 = 360 + 1458/324 = 1818/324 - 1818/324 simplified gives 101/18
- So, 90/81 + 18/4 = 101/18
In mixed form: 511/18
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