Add 1/7 and 42/54
1/7 + 42/54 is 58/63.
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,
1/7 = 1 × 54/7 × 54 = 54/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
42/54 = 42 × 7/54 × 7 = 294/378 - Add the two like fractions:
54/378 + 294/378 = 54 + 294/378 = 348/378 - 348/378 simplified gives 58/63
- So, 1/7 + 42/54 = 58/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/7+42/54 1/7+84/54 1/14+42/54 3/7+42/54 1/21+42/54 5/7+42/54 1/35+42/54 1/49+42/54