Add 72/45 and 42/5
1st number: 1 27/45, 2nd number: 8 2/5
72/45 + 42/5 is 10/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
72/45 = 72 × 1/45 × 1 = 72/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
42/5 = 42 × 9/5 × 9 = 378/45 - Add the two like fractions:
72/45 + 378/45 = 72 + 378/45 = 450/45 - 450/45 simplified gives 10/1
- So, 72/45 + 42/5 = 10/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/45+84/5 72/90+42/5 72/45+42/10 72/45+42/15 72/45+42/25 72/45+42/35