Add 42/8 and 75/45
1st number: 5 2/8, 2nd number: 1 30/45
42/8 + 75/45 is 83/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
42/8 = 42 × 45/8 × 45 = 1890/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
75/45 = 75 × 8/45 × 8 = 600/360 - Add the two like fractions:
1890/360 + 600/360 = 1890 + 600/360 = 2490/360 - 2490/360 simplified gives 83/12
- So, 42/8 + 75/45 = 83/12
In mixed form: 611/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8+75/45 42/16+75/45 42/8+75/90 42/24+75/45 42/40+75/45 42/56+75/45