Add 12/40 and 10/63
12/40 + 10/63 is 289/630.
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,
12/40 = 12 × 63/40 × 63 = 756/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
10/63 = 10 × 40/63 × 40 = 400/2520 - Add the two like fractions:
756/2520 + 400/2520 = 756 + 400/2520 = 1156/2520 - 1156/2520 simplified gives 289/630
- So, 12/40 + 10/63 = 289/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/40+10/63 12/40+20/63 12/80+10/63 36/40+10/63 12/40+30/63 60/40+10/63 12/40+50/63 84/40+10/63 12/40+70/63