Add 9/40 and 1/28
9/40 + 1/28 is 73/280.
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,
9/40 = 9 × 7/40 × 7 = 63/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
1/28 = 1 × 10/28 × 10 = 10/280 - Add the two like fractions:
63/280 + 10/280 = 63 + 10/280 = 73/280 - So, 9/40 + 1/28 = 73/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/40+1/28 9/40+2/28 9/80+1/28 9/40+1/56 27/40+1/28 9/40+3/28 9/40+1/84 45/40+1/28 9/40+5/28 63/40+1/28 9/40+7/28