Add 45/72 and 14/5
1st number: 45/72, 2nd number: 2 4/5
45/72 + 14/5 is 137/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 5 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
45/72 = 45 × 5/72 × 5 = 225/360 - Likewise, for the 2nd fraction, since 5 × 72 = 360,
14/5 = 14 × 72/5 × 72 = 1008/360 - Add the two like fractions:
225/360 + 1008/360 = 225 + 1008/360 = 1233/360 - 1233/360 simplified gives 137/40
- So, 45/72 + 14/5 = 137/40
In mixed form: 317/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72+14/5 45/72+28/5 45/72+14/10 45/72+42/5 45/72+14/15 45/72+70/5 45/72+14/25 45/72+98/5 45/72+14/35