Add 54/7 and 18/9
1st number: 7 5/7, 2nd number: 2 0/9
54/7 + 18/9 is 68/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
54/7 = 54 × 9/7 × 9 = 486/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
18/9 = 18 × 7/9 × 7 = 126/63 - Add the two like fractions:
486/63 + 126/63 = 486 + 126/63 = 612/63 - 612/63 simplified gives 68/7
- So, 54/7 + 18/9 = 68/7
In mixed form: 95/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7+36/9 54/14+18/9 54/7+54/9 54/21+18/9 54/7+18/27 54/7+90/9 54/35+18/9 54/7+18/45 54/49+18/9 54/7+18/63