Add 12/7 and 18/54
1st number: 1 5/7, 2nd number: 18/54
12/7 + 18/54 is 43/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
12/7 = 12 × 54/7 × 54 = 648/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
18/54 = 18 × 7/54 × 7 = 126/378 - Add the two like fractions:
648/378 + 126/378 = 648 + 126/378 = 774/378 - 774/378 simplified gives 43/21
- So, 12/7 + 18/54 = 43/21
In mixed form: 21/21
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