Add 30/72 and 24/40
30/72 + 24/40 is 61/60.
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,
30/72 = 30 × 5/72 × 5 = 150/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
24/40 = 24 × 9/40 × 9 = 216/360 - Add the two like fractions:
150/360 + 216/360 = 150 + 216/360 = 366/360 - 366/360 simplified gives 61/60
- So, 30/72 + 24/40 = 61/60
In mixed form: 11/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72+24/40 30/72+48/40 30/72+24/80 90/72+24/40 30/72+72/40