Add 98/60 and 72/90
1st number: 1 38/60, 2nd number: 72/90
98/60 + 72/90 is 73/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
98/60 = 98 × 3/60 × 3 = 294/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
72/90 = 72 × 2/90 × 2 = 144/180 - Add the two like fractions:
294/180 + 144/180 = 294 + 144/180 = 438/180 - 438/180 simplified gives 73/30
- So, 98/60 + 72/90 = 73/30
In mixed form: 213/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: