Add 90/6 and 63/40
1st number: 15 0/6, 2nd number: 1 23/40
90/6 + 63/40 is 663/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 6 × 20 = 120,
90/6 = 90 × 20/6 × 20 = 1800/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
63/40 = 63 × 3/40 × 3 = 189/120 - Add the two like fractions:
1800/120 + 189/120 = 1800 + 189/120 = 1989/120 - 1989/120 simplified gives 663/40
- So, 90/6 + 63/40 = 663/40
In mixed form: 1623/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+63/40 90/6+63/80 90/18+63/40 90/30+63/40 90/42+63/40