Add 12/72 and 48/20
1st number: 12/72, 2nd number: 2 8/20
12/72 + 48/20 is 77/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
12/72 = 12 × 5/72 × 5 = 60/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
48/20 = 48 × 18/20 × 18 = 864/360 - Add the two like fractions:
60/360 + 864/360 = 60 + 864/360 = 924/360 - 924/360 simplified gives 77/30
- So, 12/72 + 48/20 = 77/30
In mixed form: 217/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/72+48/20 12/72+96/20 12/72+48/40 36/72+48/20 12/72+48/60 60/72+48/20 84/72+48/20