Add 6/40 and 9/28
6/40 + 9/28 is 33/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 28 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 28 × 10 = 280,
9/28 = 9 × 10/28 × 10 = 90/280 - Add the two like fractions:
42/280 + 90/280 = 42 + 90/280 = 132/280 - 132/280 simplified gives 33/70
- So, 6/40 + 9/28 = 33/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/40+9/28 6/40+18/28 6/80+9/28 6/40+9/56 18/40+9/28 6/40+27/28 6/40+9/84 30/40+9/28 6/40+45/28 42/40+9/28 6/40+63/28