Add 90/81 and 4/45
1st number: 1 9/81, 2nd number: 4/45
90/81 + 4/45 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 45 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
90/81 = 90 × 5/81 × 5 = 450/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
4/45 = 4 × 9/45 × 9 = 36/405 - Add the two like fractions:
450/405 + 36/405 = 450 + 36/405 = 486/405 - 486/405 simplified gives 6/5
- So, 90/81 + 4/45 = 6/5
In mixed form: 11/5
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