Add 81/90 and 63/4
1st number: 81/90, 2nd number: 15 3/4
81/90 + 63/4 is 333/20.
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,
81/90 = 81 × 2/90 × 2 = 162/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
63/4 = 63 × 45/4 × 45 = 2835/180 - Add the two like fractions:
162/180 + 2835/180 = 162 + 2835/180 = 2997/180 - 2997/180 simplified gives 333/20
- So, 81/90 + 63/4 = 333/20
In mixed form: 1613/20
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