Add 1/7 and 72/45
1st number: 1/7, 2nd number: 1 27/45
1/7 + 72/45 is 61/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
1/7 = 1 × 45/7 × 45 = 45/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
72/45 = 72 × 7/45 × 7 = 504/315 - Add the two like fractions:
45/315 + 504/315 = 45 + 504/315 = 549/315 - 549/315 simplified gives 61/35
- So, 1/7 + 72/45 = 61/35
In mixed form: 126/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/7+72/45 1/14+72/45 1/7+72/90 3/7+72/45 1/21+72/45 5/7+72/45 1/35+72/45 1/49+72/45