Add 12/72 and 63/20
1st number: 12/72, 2nd number: 3 3/20
12/72 + 63/20 is 199/60.
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,
63/20 = 63 × 18/20 × 18 = 1134/360 - Add the two like fractions:
60/360 + 1134/360 = 60 + 1134/360 = 1194/360 - 1194/360 simplified gives 199/60
- So, 12/72 + 63/20 = 199/60
In mixed form: 319/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/72+63/20 12/72+63/40 36/72+63/20 12/72+63/60 60/72+63/20 84/72+63/20