Add 70/25 and 90/70
1st number: 2 20/25, 2nd number: 1 20/70
70/25 + 90/70 is 143/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 25 × 14 = 350,
70/25 = 70 × 14/25 × 14 = 980/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
90/70 = 90 × 5/70 × 5 = 450/350 - Add the two like fractions:
980/350 + 450/350 = 980 + 450/350 = 1430/350 - 1430/350 simplified gives 143/35
- So, 70/25 + 90/70 = 143/35
In mixed form: 43/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/50+90/70 70/75+90/70