Add 1/54 and 3/42
1/54 + 3/42 is 17/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
1/54 = 1 × 7/54 × 7 = 7/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
3/42 = 3 × 9/42 × 9 = 27/378 - Add the two like fractions:
7/378 + 27/378 = 7 + 27/378 = 34/378 - 34/378 simplified gives 17/189
- So, 1/54 + 3/42 = 17/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/54+3/42 1/54+6/42 1/54+3/84 3/54+3/42 1/54+9/42 5/54+3/42 1/54+15/42 7/54+3/42 1/54+21/42