Add 42/90 and 1/4
42/90 + 1/4 is 43/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
42/90 = 42 × 2/90 × 2 = 84/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
1/4 = 1 × 45/4 × 45 = 45/180 - Add the two like fractions:
84/180 + 45/180 = 84 + 45/180 = 129/180 - 129/180 simplified gives 43/60
- So, 42/90 + 1/4 = 43/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+1/4 42/90+2/4 42/90+1/8 42/90+3/4 42/90+1/12 42/90+5/4 42/90+1/20 42/90+7/4 42/90+1/28