Add 12/63 and 20/54
12/63 + 20/54 is 106/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 63 × 6 = 378,
12/63 = 12 × 6/63 × 6 = 72/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
20/54 = 20 × 7/54 × 7 = 140/378 - Add the two like fractions:
72/378 + 140/378 = 72 + 140/378 = 212/378 - 212/378 simplified gives 106/189
- So, 12/63 + 20/54 = 106/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/63+20/54 12/63+40/54 36/63+20/54 12/63+60/54 60/63+20/54 84/63+20/54