Add 3/40 and 63/60
1st number: 3/40, 2nd number: 1 3/60
3/40 + 63/60 is 9/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
3/40 = 3 × 3/40 × 3 = 9/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
63/60 = 63 × 2/60 × 2 = 126/120 - Add the two like fractions:
9/120 + 126/120 = 9 + 126/120 = 135/120 - 135/120 simplified gives 9/8
- So, 3/40 + 63/60 = 9/8
In mixed form: 11/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/40+63/60 3/80+63/60 9/40+63/60 15/40+63/60 21/40+63/60