Add 54/7 and 3/18
1st number: 7 5/7, 2nd number: 3/18
54/7 + 3/18 is 331/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
54/7 = 54 × 18/7 × 18 = 972/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
3/18 = 3 × 7/18 × 7 = 21/126 - Add the two like fractions:
972/126 + 21/126 = 972 + 21/126 = 993/126 - 993/126 simplified gives 331/42
- So, 54/7 + 3/18 = 331/42
In mixed form: 737/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7+6/18 54/14+3/18 54/7+3/36 54/7+9/18 54/21+3/18 54/7+3/54 54/7+15/18 54/35+3/18 54/7+3/90 54/7+21/18 54/49+3/18