Add 98/81 and 40/45
1st number: 1 17/81, 2nd number: 40/45
98/81 + 40/45 is 170/81.
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,
98/81 = 98 × 5/81 × 5 = 490/405 - Likewise, for the 2nd fraction, since 45 × 9 = 405,
40/45 = 40 × 9/45 × 9 = 360/405 - Add the two like fractions:
490/405 + 360/405 = 490 + 360/405 = 850/405 - 850/405 simplified gives 170/81
- So, 98/81 + 40/45 = 170/81
In mixed form: 28/81
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