Add 1/90 and 81/72
1st number: 1/90, 2nd number: 1 9/72
1/90 + 81/72 is 409/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
1/90 = 1 × 4/90 × 4 = 4/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
81/72 = 81 × 5/72 × 5 = 405/360 - Add the two like fractions:
4/360 + 405/360 = 4 + 405/360 = 409/360 - So, 1/90 + 81/72 = 409/360
In mixed form: 149/360
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