Add 80/90 and 98/40
1st number: 80/90, 2nd number: 2 18/40
80/90 + 98/40 is 601/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
80/90 = 80 × 4/90 × 4 = 320/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
98/40 = 98 × 9/40 × 9 = 882/360 - Add the two like fractions:
320/360 + 882/360 = 320 + 882/360 = 1202/360 - 1202/360 simplified gives 601/180
- So, 80/90 + 98/40 = 601/180
In mixed form: 361/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/90+98/80