Add 12/56 and 16/20
12/56 + 16/20 is 71/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
12/56 = 12 × 5/56 × 5 = 60/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
16/20 = 16 × 14/20 × 14 = 224/280 - Add the two like fractions:
60/280 + 224/280 = 60 + 224/280 = 284/280 - 284/280 simplified gives 71/70
- So, 12/56 + 16/20 = 71/70
In mixed form: 11/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/56+16/20 12/56+32/20 12/56+16/40 36/56+16/20 12/56+48/20 12/56+16/60 60/56+16/20 12/56+80/20 84/56+16/20