Add 70/45 and 4/7
1st number: 1 25/45, 2nd number: 4/7
70/45 + 4/7 is 134/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 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 7 × 45 = 315,
4/7 = 4 × 45/7 × 45 = 180/315 - Add the two like fractions:
490/315 + 180/315 = 490 + 180/315 = 670/315 - 670/315 simplified gives 134/63
- So, 70/45 + 4/7 = 134/63
In mixed form: 28/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/45+8/7 70/90+4/7 70/45+4/14 70/45+12/7 70/45+4/21 70/45+20/7 70/45+4/35 70/45+28/7 70/45+4/49