Add 4/7 and 3/40
4/7 + 3/40 is 181/280.
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,
4/7 = 4 × 40/7 × 40 = 160/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
3/40 = 3 × 7/40 × 7 = 21/280 - Add the two like fractions:
160/280 + 21/280 = 160 + 21/280 = 181/280 - So, 4/7 + 3/40 = 181/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/7+3/40 4/7+6/40 4/14+3/40 4/7+3/80 12/7+3/40 4/7+9/40 4/21+3/40 20/7+3/40 4/7+15/40 4/35+3/40 28/7+3/40 4/7+21/40 4/49+3/40