Add 8/28 and 54/40
1st number: 8/28, 2nd number: 1 14/40
8/28 + 54/40 is 229/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
8/28 = 8 × 10/28 × 10 = 80/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
54/40 = 54 × 7/40 × 7 = 378/280 - Add the two like fractions:
80/280 + 378/280 = 80 + 378/280 = 458/280 - 458/280 simplified gives 229/140
- So, 8/28 + 54/40 = 229/140
In mixed form: 189/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/28+54/40 8/56+54/40 8/28+54/80 24/28+54/40 8/84+54/40 40/28+54/40 56/28+54/40