Add 90/70 and 10/5
1st number: 1 20/70, 2nd number: 2 0/5
90/70 + 10/5 is 23/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
90/70 = 90 × 1/70 × 1 = 90/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
10/5 = 10 × 14/5 × 14 = 140/70 - Add the two like fractions:
90/70 + 140/70 = 90 + 140/70 = 230/70 - 230/70 simplified gives 23/7
- So, 90/70 + 10/5 = 23/7
In mixed form: 32/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+20/5 90/70+30/5 90/70+10/15 90/70+50/5 90/70+10/25 90/70+70/5 90/70+10/35