Add 81/30 and 54/27
1st number: 2 21/30, 2nd number: 2 0/27
81/30 + 54/27 is 47/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
81/30 = 81 × 9/30 × 9 = 729/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
54/27 = 54 × 10/27 × 10 = 540/270 - Add the two like fractions:
729/270 + 540/270 = 729 + 540/270 = 1269/270 - 1269/270 simplified gives 47/10
- So, 81/30 + 54/27 = 47/10
In mixed form: 47/10
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