Add 1/90 and 81/4
1st number: 1/90, 2nd number: 20 1/4
1/90 + 81/4 is 3647/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 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 4 × 45 = 180,
81/4 = 81 × 45/4 × 45 = 3645/180 - Add the two like fractions:
2/180 + 3645/180 = 2 + 3645/180 = 3647/180 - So, 1/90 + 81/4 = 3647/180
In mixed form: 2047/180
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