Add 6/40 and 21/35
6/40 + 21/35 is 3/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
6/40 = 6 × 7/40 × 7 = 42/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
21/35 = 21 × 8/35 × 8 = 168/280 - Add the two like fractions:
42/280 + 168/280 = 42 + 168/280 = 210/280 - 210/280 simplified gives 3/4
- So, 6/40 + 21/35 = 3/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/40+21/35 6/40+42/35 6/80+21/35 6/40+21/70 18/40+21/35 6/40+63/35 30/40+21/35 42/40+21/35