Add 8/40 and 14/7
1st number: 8/40, 2nd number: 2 0/7
8/40 + 14/7 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 7 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
8/40 = 8 × 7/40 × 7 = 56/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
14/7 = 14 × 40/7 × 40 = 560/280 - Add the two like fractions:
56/280 + 560/280 = 56 + 560/280 = 616/280 - 616/280 simplified gives 11/5
- So, 8/40 + 14/7 = 11/5
In mixed form: 21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/40+14/7 8/40+28/7 8/80+14/7 24/40+14/7 8/40+42/7 8/40+14/21 8/40+70/7 8/40+14/35 56/40+14/7 8/40+98/7 8/40+14/49