Add 63/70 and 5/45
63/70 + 5/45 is 91/90.
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,
63/70 = 63 × 9/70 × 9 = 567/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
5/45 = 5 × 14/45 × 14 = 70/630 - Add the two like fractions:
567/630 + 70/630 = 567 + 70/630 = 637/630 - 637/630 simplified gives 91/90
- So, 63/70 + 5/45 = 91/90
In mixed form: 11/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/70+10/45 63/70+5/90 63/70+15/45 63/70+25/45 63/70+35/45