Add 3/20 and 70/56
1st number: 3/20, 2nd number: 1 14/56
3/20 + 70/56 is 7/5.
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,
70/56 = 70 × 5/56 × 5 = 350/280 - Add the two like fractions:
42/280 + 350/280 = 42 + 350/280 = 392/280 - 392/280 simplified gives 7/5
- So, 3/20 + 70/56 = 7/5
In mixed form: 12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20+70/56 3/40+70/56 9/20+70/56 3/60+70/56 15/20+70/56 21/20+70/56