Add 72/2 and 42/90
1st number: 36 0/2, 2nd number: 42/90
72/2 + 42/90 is 547/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
72/2 = 72 × 45/2 × 45 = 3240/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90 - Add the two like fractions:
3240/90 + 42/90 = 3240 + 42/90 = 3282/90 - 3282/90 simplified gives 547/15
- So, 72/2 + 42/90 = 547/15
In mixed form: 367/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/2+84/90 72/4+42/90 72/6+42/90 72/10+42/90 72/14+42/90