Add 63/40 and 45/15
1st number: 1 23/40, 2nd number: 3 0/15
63/40 + 45/15 is 183/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
63/40 = 63 × 3/40 × 3 = 189/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
45/15 = 45 × 8/15 × 8 = 360/120 - Add the two like fractions:
189/120 + 360/120 = 189 + 360/120 = 549/120 - 549/120 simplified gives 183/40
- So, 63/40 + 45/15 = 183/40
In mixed form: 423/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/40+90/15 63/80+45/15 63/40+45/30 63/40+45/75