Add 48/40 and 80/72
1st number: 1 8/40, 2nd number: 1 8/72
48/40 + 80/72 is 104/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
48/40 = 48 × 9/40 × 9 = 432/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
80/72 = 80 × 5/72 × 5 = 400/360 - Add the two like fractions:
432/360 + 400/360 = 432 + 400/360 = 832/360 - 832/360 simplified gives 104/45
- So, 48/40 + 80/72 = 104/45
In mixed form: 214/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/40+80/72 48/80+80/72