Add 8/72 and 12/20
8/72 + 12/20 is 32/45.
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,
8/72 = 8 × 5/72 × 5 = 40/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
12/20 = 12 × 18/20 × 18 = 216/360 - Add the two like fractions:
40/360 + 216/360 = 40 + 216/360 = 256/360 - 256/360 simplified gives 32/45
- So, 8/72 + 12/20 = 32/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/72+12/20 8/72+24/20 8/72+12/40 24/72+12/20 8/72+36/20 8/72+12/60 40/72+12/20 8/72+60/20 56/72+12/20 8/72+84/20