Add 42/90 and 15/48
42/90 + 15/48 is 187/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
42/90 = 42 × 8/90 × 8 = 336/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
15/48 = 15 × 15/48 × 15 = 225/720 - Add the two like fractions:
336/720 + 225/720 = 336 + 225/720 = 561/720 - 561/720 simplified gives 187/240
- So, 42/90 + 15/48 = 187/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+15/48 42/90+30/48 42/90+15/96 42/90+45/48 42/90+75/48