Add 42/54 and 1/7
42/54 + 1/7 is 58/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 7 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
42/54 = 42 × 7/54 × 7 = 294/378 - Likewise, for the 2nd fraction, since 7 × 54 = 378,
1/7 = 1 × 54/7 × 54 = 54/378 - Add the two like fractions:
294/378 + 54/378 = 294 + 54/378 = 348/378 - 348/378 simplified gives 58/63
- So, 42/54 + 1/7 = 58/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/54+1/7 42/54+2/7 42/54+1/14 42/54+3/7 42/54+1/21 42/54+5/7 42/54+1/35 42/54+1/49