Add 90/60 and 40/63
1st number: 1 30/60, 2nd number: 40/63
90/60 + 40/63 is 269/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 60 × 21 = 1260,
90/60 = 90 × 21/60 × 21 = 1890/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
40/63 = 40 × 20/63 × 20 = 800/1260 - Add the two like fractions:
1890/1260 + 800/1260 = 1890 + 800/1260 = 2690/1260 - 2690/1260 simplified gives 269/126
- So, 90/60 + 40/63 = 269/126
In mixed form: 217/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/60+80/63