Add 54/72 and 10/80
54/72 + 10/80 is 7/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 72 × 10 = 720,
54/72 = 54 × 10/72 × 10 = 540/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
10/80 = 10 × 9/80 × 9 = 90/720 - Add the two like fractions:
540/720 + 90/720 = 540 + 90/720 = 630/720 - 630/720 simplified gives 7/8
- So, 54/72 + 10/80 = 7/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/72+20/80 54/72+30/80 54/72+50/80 54/72+70/80