Add 60/40 and 30/63
1st number: 1 20/40, 2nd number: 30/63
60/40 + 30/63 is 83/42.
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,
60/40 = 60 × 63/40 × 63 = 3780/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
30/63 = 30 × 40/63 × 40 = 1200/2520 - Add the two like fractions:
3780/2520 + 1200/2520 = 3780 + 1200/2520 = 4980/2520 - 4980/2520 simplified gives 83/42
- So, 60/40 + 30/63 = 83/42
In mixed form: 141/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+60/63 60/80+30/63 60/40+90/63