Add 30/40 and 3/56
30/40 + 3/56 is 45/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
30/40 = 30 × 7/40 × 7 = 210/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
3/56 = 3 × 5/56 × 5 = 15/280 - Add the two like fractions:
210/280 + 15/280 = 210 + 15/280 = 225/280 - 225/280 simplified gives 45/56
- So, 30/40 + 3/56 = 45/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+3/56 30/40+6/56 30/80+3/56 90/40+3/56 30/40+9/56 30/40+15/56 30/40+21/56