Add 20/7 and 8/40
1st number: 2 6/7, 2nd number: 8/40
20/7 + 8/40 is 107/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
20/7 = 20 × 40/7 × 40 = 800/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
8/40 = 8 × 7/40 × 7 = 56/280 - Add the two like fractions:
800/280 + 56/280 = 800 + 56/280 = 856/280 - 856/280 simplified gives 107/35
- So, 20/7 + 8/40 = 107/35
In mixed form: 32/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/7+8/40 20/7+16/40 20/14+8/40 20/7+8/80 60/7+8/40 20/7+24/40 20/21+8/40 20/35+8/40 20/7+56/40 20/49+8/40