Add 70/42 and 3/45
1st number: 1 28/42, 2nd number: 3/45
70/42 + 3/45 is 26/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
70/42 = 70 × 15/42 × 15 = 1050/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
3/45 = 3 × 14/45 × 14 = 42/630 - Add the two like fractions:
1050/630 + 42/630 = 1050 + 42/630 = 1092/630 - 1092/630 simplified gives 26/15
- So, 70/42 + 3/45 = 26/15
In mixed form: 111/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+6/45 70/84+3/45 70/42+3/90 70/42+9/45 70/42+15/45 70/42+21/45