Add 54/9 and 40/7
1st number: 6 0/9, 2nd number: 5 5/7
54/9 + 40/7 is 82/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
54/9 = 54 × 7/9 × 7 = 378/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
40/7 = 40 × 9/7 × 9 = 360/63 - Add the two like fractions:
378/63 + 360/63 = 378 + 360/63 = 738/63 - 738/63 simplified gives 82/7
- So, 54/9 + 40/7 = 82/7
In mixed form: 115/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/9+80/7 54/18+40/7 54/9+40/14 54/27+40/7 54/9+40/21 54/45+40/7 54/9+40/35 54/63+40/7 54/9+40/49