Add 18/72 and 64/30
1st number: 18/72, 2nd number: 2 4/30
18/72 + 64/30 is 143/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
18/72 = 18 × 5/72 × 5 = 90/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
64/30 = 64 × 12/30 × 12 = 768/360 - Add the two like fractions:
90/360 + 768/360 = 90 + 768/360 = 858/360 - 858/360 simplified gives 143/60
- So, 18/72 + 64/30 = 143/60
In mixed form: 223/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/72+64/30 18/72+64/60 54/72+64/30 18/72+64/90 90/72+64/30