Add 75/45 and 3/42
1st number: 1 30/45, 2nd number: 3/42
75/45 + 3/42 is 73/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
75/45 = 75 × 14/45 × 14 = 1050/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
3/42 = 3 × 15/42 × 15 = 45/630 - Add the two like fractions:
1050/630 + 45/630 = 1050 + 45/630 = 1095/630 - 1095/630 simplified gives 73/42
- So, 75/45 + 3/42 = 73/42
In mixed form: 131/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/45+6/42 75/90+3/42 75/45+3/84 75/45+9/42 75/45+15/42 75/45+21/42