Add 90/10 and 63/12
1st number: 9 0/10, 2nd number: 5 3/12
90/10 + 63/12 is 57/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
90/10 = 90 × 6/10 × 6 = 540/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
63/12 = 63 × 5/12 × 5 = 315/60 - Add the two like fractions:
540/60 + 315/60 = 540 + 315/60 = 855/60 - 855/60 simplified gives 57/4
- So, 90/10 + 63/12 = 57/4
In mixed form: 141/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+63/12 90/10+63/24 90/30+63/12 90/10+63/36 90/50+63/12 90/10+63/60 90/70+63/12 90/10+63/84