Add 90/70 and 5/63
1st number: 1 20/70, 2nd number: 5/63
90/70 + 5/63 is 86/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
90/70 = 90 × 9/70 × 9 = 810/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
5/63 = 5 × 10/63 × 10 = 50/630 - Add the two like fractions:
810/630 + 50/630 = 810 + 50/630 = 860/630 - 860/630 simplified gives 86/63
- So, 90/70 + 5/63 = 86/63
In mixed form: 123/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+10/63 90/70+15/63 90/70+25/63 90/70+35/63