Add 14/90 and 4/42
14/90 + 4/42 is 79/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
14/90 = 14 × 7/90 × 7 = 98/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
4/42 = 4 × 15/42 × 15 = 60/630 - Add the two like fractions:
98/630 + 60/630 = 98 + 60/630 = 158/630 - 158/630 simplified gives 79/315
- So, 14/90 + 4/42 = 79/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/90+4/42 14/90+8/42 14/90+4/84 42/90+4/42 14/90+12/42 70/90+4/42 14/90+20/42 98/90+4/42 14/90+28/42