Add 20/70 and 28/25
1st number: 20/70, 2nd number: 1 3/25
20/70 + 28/25 is 246/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 25 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
20/70 = 20 × 5/70 × 5 = 100/350 - Likewise, for the 2nd fraction, since 25 × 14 = 350,
28/25 = 28 × 14/25 × 14 = 392/350 - Add the two like fractions:
100/350 + 392/350 = 100 + 392/350 = 492/350 - 492/350 simplified gives 246/175
- So, 20/70 + 28/25 = 246/175
In mixed form: 171/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/70+28/25 20/70+56/25 20/70+28/50 60/70+28/25 20/70+84/25 20/70+28/75