Add 3/7 and 20/54
3/7 + 20/54 is 151/189.
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,
3/7 = 3 × 54/7 × 54 = 162/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
20/54 = 20 × 7/54 × 7 = 140/378 - Add the two like fractions:
162/378 + 140/378 = 162 + 140/378 = 302/378 - 302/378 simplified gives 151/189
- So, 3/7 + 20/54 = 151/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/7+20/54 3/7+40/54 3/14+20/54 9/7+20/54 3/7+60/54 3/21+20/54 15/7+20/54 3/35+20/54 21/7+20/54 3/49+20/54