Add 4/20 and 12/15
4/20 + 12/15 is 1/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
4/20 = 4 × 3/20 × 3 = 12/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
12/15 = 12 × 4/15 × 4 = 48/60 - Add the two like fractions:
12/60 + 48/60 = 12 + 48/60 = 60/60 - 60/60 simplified gives 1/1
- So, 4/20 + 12/15 = 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/20+12/15 4/20+24/15 4/40+12/15 4/20+12/30 12/20+12/15 4/20+36/15 4/60+12/15 4/20+12/45 4/20+60/15 4/20+12/75 28/20+12/15 4/20+84/15