Add 15/63 and 12/20
15/63 + 12/20 is 88/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
15/63 = 15 × 20/63 × 20 = 300/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
12/20 = 12 × 63/20 × 63 = 756/1260 - Add the two like fractions:
300/1260 + 756/1260 = 300 + 756/1260 = 1056/1260 - 1056/1260 simplified gives 88/105
- So, 15/63 + 12/20 = 88/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/63+12/20 15/63+24/20 15/63+12/40 45/63+12/20 15/63+36/20 15/63+12/60 75/63+12/20 15/63+60/20 15/63+84/20