Add 3/72 and 90/40
1st number: 3/72, 2nd number: 2 10/40
3/72 + 90/40 is 55/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
3/72 = 3 × 5/72 × 5 = 15/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
90/40 = 90 × 9/40 × 9 = 810/360 - Add the two like fractions:
15/360 + 810/360 = 15 + 810/360 = 825/360 - 825/360 simplified gives 55/24
- So, 3/72 + 90/40 = 55/24
In mixed form: 27/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/72+90/40 3/72+90/80 9/72+90/40 15/72+90/40 21/72+90/40