Add 75/12 and 18/20
1st number: 6 3/12, 2nd number: 18/20
75/12 + 18/20 is 143/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
75/12 = 75 × 5/12 × 5 = 375/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Add the two like fractions:
375/60 + 54/60 = 375 + 54/60 = 429/60 - 429/60 simplified gives 143/20
- So, 75/12 + 18/20 = 143/20
In mixed form: 73/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/12+36/20 75/24+18/20 75/12+18/40 75/12+54/20 75/36+18/20 75/12+18/60 75/12+90/20 75/60+18/20 75/84+18/20