Add 2/20 and 90/63
1st number: 2/20, 2nd number: 1 27/63
2/20 + 90/63 is 107/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
2/20 = 2 × 63/20 × 63 = 126/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
90/63 = 90 × 20/63 × 20 = 1800/1260 - Add the two like fractions:
126/1260 + 1800/1260 = 126 + 1800/1260 = 1926/1260 - 1926/1260 simplified gives 107/70
- So, 2/20 + 90/63 = 107/70
In mixed form: 137/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/20+90/63 2/40+90/63 6/20+90/63 2/60+90/63 10/20+90/63 14/20+90/63