Add 42/54 and 81/30
1st number: 42/54, 2nd number: 2 21/30
42/54 + 81/30 is 313/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
42/54 = 42 × 5/54 × 5 = 210/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
81/30 = 81 × 9/30 × 9 = 729/270 - Add the two like fractions:
210/270 + 729/270 = 210 + 729/270 = 939/270 - 939/270 simplified gives 313/90
- So, 42/54 + 81/30 = 313/90
In mixed form: 343/90
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