Add 45/56 and 54/40
1st number: 45/56, 2nd number: 1 14/40
45/56 + 54/40 is 603/280.
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,
45/56 = 45 × 5/56 × 5 = 225/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
54/40 = 54 × 7/40 × 7 = 378/280 - Add the two like fractions:
225/280 + 378/280 = 225 + 378/280 = 603/280 - So, 45/56 + 54/40 = 603/280
In mixed form: 243/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56+54/40 45/56+54/80