Add 10/70 and 80/45
1st number: 10/70, 2nd number: 1 35/45
10/70 + 80/45 is 121/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
10/70 = 10 × 9/70 × 9 = 90/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
80/45 = 80 × 14/45 × 14 = 1120/630 - Add the two like fractions:
90/630 + 1120/630 = 90 + 1120/630 = 1210/630 - 1210/630 simplified gives 121/63
- So, 10/70 + 80/45 = 121/63
In mixed form: 158/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/70+80/45 10/70+80/90 30/70+80/45 50/70+80/45