Add 50/63 and 72/90
50/63 + 72/90 is 502/315.
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,
50/63 = 50 × 10/63 × 10 = 500/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
72/90 = 72 × 7/90 × 7 = 504/630 - Add the two like fractions:
500/630 + 504/630 = 500 + 504/630 = 1004/630 - 1004/630 simplified gives 502/315
- So, 50/63 + 72/90 = 502/315
In mixed form: 1187/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: