Add 81/4 and 45/90
1st number: 20 1/4, 2nd number: 45/90
81/4 + 45/90 is 83/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
81/4 = 81 × 45/4 × 45 = 3645/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
45/90 = 45 × 2/90 × 2 = 90/180 - Add the two like fractions:
3645/180 + 90/180 = 3645 + 90/180 = 3735/180 - 3735/180 simplified gives 83/4
- So, 81/4 + 45/90 = 83/4
In mixed form: 203/4
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