Add 9/90 and 72/5
1st number: 9/90, 2nd number: 14 2/5
9/90 + 72/5 is 29/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
9/90 = 9 × 1/90 × 1 = 9/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
72/5 = 72 × 18/5 × 18 = 1296/90 - Add the two like fractions:
9/90 + 1296/90 = 9 + 1296/90 = 1305/90 - 1305/90 simplified gives 29/2
- So, 9/90 + 72/5 = 29/2
In mixed form: 141/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/90+72/5 9/90+72/10 27/90+72/5 9/90+72/15 45/90+72/5 9/90+72/25 63/90+72/5 9/90+72/35