Add 81/4 and 27/30
1st number: 20 1/4, 2nd number: 27/30
81/4 + 27/30 is 423/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
81/4 = 81 × 15/4 × 15 = 1215/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
27/30 = 27 × 2/30 × 2 = 54/60 - Add the two like fractions:
1215/60 + 54/60 = 1215 + 54/60 = 1269/60 - 1269/60 simplified gives 423/20
- So, 81/4 + 27/30 = 423/20
In mixed form: 213/20
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