Add 90/80 and 8/63
1st number: 1 10/80, 2nd number: 8/63
90/80 + 8/63 is 631/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 63 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 80 × 63 = 5040,
90/80 = 90 × 63/80 × 63 = 5670/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
8/63 = 8 × 80/63 × 80 = 640/5040 - Add the two like fractions:
5670/5040 + 640/5040 = 5670 + 640/5040 = 6310/5040 - 6310/5040 simplified gives 631/504
- So, 90/80 + 8/63 = 631/504
In mixed form: 1127/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80+16/63 90/80+24/63 90/80+40/63 90/80+56/63