Add 72/42 and 12/81
1st number: 1 30/42, 2nd number: 12/81
72/42 + 12/81 is 352/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
72/42 = 72 × 27/42 × 27 = 1944/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
12/81 = 12 × 14/81 × 14 = 168/1134 - Add the two like fractions:
1944/1134 + 168/1134 = 1944 + 168/1134 = 2112/1134 - 2112/1134 simplified gives 352/189
- So, 72/42 + 12/81 = 352/189
In mixed form: 1163/189
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