Add 7/90 and 75/54
1st number: 7/90, 2nd number: 1 21/54
7/90 + 75/54 is 22/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
7/90 = 7 × 3/90 × 3 = 21/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
75/54 = 75 × 5/54 × 5 = 375/270 - Add the two like fractions:
21/270 + 375/270 = 21 + 375/270 = 396/270 - 396/270 simplified gives 22/15
- So, 7/90 + 75/54 = 22/15
In mixed form: 17/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90+75/54 21/90+75/54 35/90+75/54 49/90+75/54