Add 56/80 and 9/45
56/80 + 9/45 is 9/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
56/80 = 56 × 9/80 × 9 = 504/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
9/45 = 9 × 16/45 × 16 = 144/720 - Add the two like fractions:
504/720 + 144/720 = 504 + 144/720 = 648/720 - 648/720 simplified gives 9/10
- So, 56/80 + 9/45 = 9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/80+18/45 56/80+9/90 56/80+27/45 56/80+63/45