Add 90/45 and 4/63
1st number: 2 0/45, 2nd number: 4/63
90/45 + 4/63 is 130/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
90/45 = 90 × 7/45 × 7 = 630/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
4/63 = 4 × 5/63 × 5 = 20/315 - Add the two like fractions:
630/315 + 20/315 = 630 + 20/315 = 650/315 - 650/315 simplified gives 130/63
- So, 90/45 + 4/63 = 130/63
In mixed form: 24/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45+8/63 90/45+12/63 90/45+20/63 90/45+28/63