Add 72/30 and 81/54
1st number: 2 12/30, 2nd number: 1 27/54
72/30 + 81/54 is 39/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
72/30 = 72 × 9/30 × 9 = 648/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
81/54 = 81 × 5/54 × 5 = 405/270 - Add the two like fractions:
648/270 + 405/270 = 648 + 405/270 = 1053/270 - 1053/270 simplified gives 39/10
- So, 72/30 + 81/54 = 39/10
In mixed form: 39/10
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