Add 63/60 and 15/40
1st number: 1 3/60, 2nd number: 15/40
63/60 + 15/40 is 57/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 60 × 2 = 120,
63/60 = 63 × 2/60 × 2 = 126/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
15/40 = 15 × 3/40 × 3 = 45/120 - Add the two like fractions:
126/120 + 45/120 = 126 + 45/120 = 171/120 - 171/120 simplified gives 57/40
- So, 63/60 + 15/40 = 57/40
In mixed form: 117/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/60+30/40 63/60+15/80 63/60+45/40 63/60+75/40