Add 1/28 and 27/40
1/28 + 27/40 is 199/280.
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,
1/28 = 1 × 10/28 × 10 = 10/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
27/40 = 27 × 7/40 × 7 = 189/280 - Add the two like fractions:
10/280 + 189/280 = 10 + 189/280 = 199/280 - So, 1/28 + 27/40 = 199/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/28+27/40 1/28+54/40 1/56+27/40 1/28+27/80 3/28+27/40 1/28+81/40 1/84+27/40 5/28+27/40 7/28+27/40