Add 15/40 and 48/63
15/40 + 48/63 is 191/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
15/40 = 15 × 63/40 × 63 = 945/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
48/63 = 48 × 40/63 × 40 = 1920/2520 - Add the two like fractions:
945/2520 + 1920/2520 = 945 + 1920/2520 = 2865/2520 - 2865/2520 simplified gives 191/168
- So, 15/40 + 48/63 = 191/168
In mixed form: 123/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/40+48/63 15/40+96/63 15/80+48/63 45/40+48/63 75/40+48/63