Add 54/20 and 70/56
1st number: 2 14/20, 2nd number: 1 14/56
54/20 + 70/56 is 79/20.
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,
54/20 = 54 × 14/20 × 14 = 756/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
70/56 = 70 × 5/56 × 5 = 350/280 - Add the two like fractions:
756/280 + 350/280 = 756 + 350/280 = 1106/280 - 1106/280 simplified gives 79/20
- So, 54/20 + 70/56 = 79/20
In mixed form: 319/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40+70/56 54/60+70/56