Add 40/8 and 90/7
1st number: 5 0/8, 2nd number: 12 6/7
40/8 + 90/7 is 125/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
40/8 = 40 × 7/8 × 7 = 280/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
90/7 = 90 × 8/7 × 8 = 720/56 - Add the two like fractions:
280/56 + 720/56 = 280 + 720/56 = 1000/56 - 1000/56 simplified gives 125/7
- So, 40/8 + 90/7 = 125/7
In mixed form: 176/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+90/7 40/16+90/7 40/8+90/14 40/24+90/7 40/8+90/21 40/8+90/35 40/56+90/7 40/8+90/49