Add 7/45 and 27/80
7/45 + 27/80 is 71/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
7/45 = 7 × 16/45 × 16 = 112/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
27/80 = 27 × 9/80 × 9 = 243/720 - Add the two like fractions:
112/720 + 243/720 = 112 + 243/720 = 355/720 - 355/720 simplified gives 71/144
- So, 7/45 + 27/80 = 71/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+27/80 7/45+54/80 7/90+27/80 21/45+27/80 7/45+81/80 35/45+27/80 49/45+27/80