Add 75/63 and 7/90
1st number: 1 12/63, 2nd number: 7/90
75/63 + 7/90 is 799/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
75/63 = 75 × 10/63 × 10 = 750/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
7/90 = 7 × 7/90 × 7 = 49/630 - Add the two like fractions:
750/630 + 49/630 = 750 + 49/630 = 799/630 - So, 75/63 + 7/90 = 799/630
In mixed form: 1169/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/63+14/90 75/63+21/90 75/63+35/90 75/63+49/90