Add 40/7 and 80/8
1st number: 5 5/7, 2nd number: 10 0/8
40/7 + 80/8 is 110/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
40/7 = 40 × 8/7 × 8 = 320/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
80/8 = 80 × 7/8 × 7 = 560/56 - Add the two like fractions:
320/56 + 560/56 = 320 + 560/56 = 880/56 - 880/56 simplified gives 110/7
- So, 40/7 + 80/8 = 110/7
In mixed form: 155/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/7+80/8 40/14+80/8 40/7+80/16 40/21+80/8 40/7+80/24 40/35+80/8 40/7+80/40 40/49+80/8 40/7+80/56