Add 3/20 and 18/56
3/20 + 18/56 is 33/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
3/20 = 3 × 14/20 × 14 = 42/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
18/56 = 18 × 5/56 × 5 = 90/280 - Add the two like fractions:
42/280 + 90/280 = 42 + 90/280 = 132/280 - 132/280 simplified gives 33/70
- So, 3/20 + 18/56 = 33/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20+18/56 3/20+36/56 3/40+18/56 9/20+18/56 3/20+54/56 3/60+18/56 15/20+18/56 3/20+90/56 21/20+18/56