Add 90/63 and 1/20
1st number: 1 27/63, 2nd number: 1/20
90/63 + 1/20 is 207/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
90/63 = 90 × 20/63 × 20 = 1800/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
1/20 = 1 × 63/20 × 63 = 63/1260 - Add the two like fractions:
1800/1260 + 63/1260 = 1800 + 63/1260 = 1863/1260 - 1863/1260 simplified gives 207/140
- So, 90/63 + 1/20 = 207/140
In mixed form: 167/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/63+2/20 90/63+1/40 90/63+3/20 90/63+1/60 90/63+5/20 90/63+7/20