Add 1/90 and 81/60
1st number: 1/90, 2nd number: 1 21/60
1/90 + 81/60 is 49/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
1/90 = 1 × 2/90 × 2 = 2/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
81/60 = 81 × 3/60 × 3 = 243/180 - Add the two like fractions:
2/180 + 243/180 = 2 + 243/180 = 245/180 - 245/180 simplified gives 49/36
- So, 1/90 + 81/60 = 49/36
In mixed form: 113/36
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