Add 45/2 and 72/80
1st number: 22 1/2, 2nd number: 72/80
45/2 + 72/80 is 117/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
45/2 = 45 × 40/2 × 40 = 1800/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
72/80 = 72 × 1/80 × 1 = 72/80 - Add the two like fractions:
1800/80 + 72/80 = 1800 + 72/80 = 1872/80 - 1872/80 simplified gives 117/5
- So, 45/2 + 72/80 = 117/5
In mixed form: 232/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2+72/80 45/4+72/80 45/6+72/80 45/10+72/80 45/14+72/80