Add 3/56 and 45/40
1st number: 3/56, 2nd number: 1 5/40
3/56 + 45/40 is 33/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
3/56 = 3 × 5/56 × 5 = 15/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
45/40 = 45 × 7/40 × 7 = 315/280 - Add the two like fractions:
15/280 + 315/280 = 15 + 315/280 = 330/280 - 330/280 simplified gives 33/28
- So, 3/56 + 45/40 = 33/28
In mixed form: 15/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/56+45/40 3/56+90/40 3/56+45/80 9/56+45/40 15/56+45/40 21/56+45/40