Add 70/45 and 3/63
1st number: 1 25/45, 2nd number: 3/63
70/45 + 3/63 is 101/63.
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,
70/45 = 70 × 7/45 × 7 = 490/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
3/63 = 3 × 5/63 × 5 = 15/315 - Add the two like fractions:
490/315 + 15/315 = 490 + 15/315 = 505/315 - 505/315 simplified gives 101/63
- So, 70/45 + 3/63 = 101/63
In mixed form: 138/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/45+6/63 70/90+3/63 70/45+9/63 70/45+15/63 70/45+21/63