Add 7/90 and 72/30
1st number: 7/90, 2nd number: 2 12/30
7/90 + 72/30 is 223/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
7/90 = 7 × 1/90 × 1 = 7/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
72/30 = 72 × 3/30 × 3 = 216/90 - Add the two like fractions:
7/90 + 216/90 = 7 + 216/90 = 223/90 - So, 7/90 + 72/30 = 223/90
In mixed form: 243/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90+72/30 7/90+72/60 21/90+72/30 7/90+72/90 35/90+72/30 49/90+72/30