Add 20/40 and 4/63
20/40 + 4/63 is 71/126.
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,
20/40 = 20 × 63/40 × 63 = 1260/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
4/63 = 4 × 40/63 × 40 = 160/2520 - Add the two like fractions:
1260/2520 + 160/2520 = 1260 + 160/2520 = 1420/2520 - 1420/2520 simplified gives 71/126
- So, 20/40 + 4/63 = 71/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/40+8/63 20/80+4/63 60/40+4/63 20/40+12/63 20/40+20/63 20/40+28/63