Add 72/90 and 98/10
1st number: 72/90, 2nd number: 9 8/10
72/90 + 98/10 is 53/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
72/90 = 72 × 1/90 × 1 = 72/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
98/10 = 98 × 9/10 × 9 = 882/90 - Add the two like fractions:
72/90 + 882/90 = 72 + 882/90 = 954/90 - 954/90 simplified gives 53/5
- So, 72/90 + 98/10 = 53/5
In mixed form: 103/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/90+98/20 72/90+98/30 72/90+98/50 72/90+98/70