Add 90/14 and 49/40
1st number: 6 6/14, 2nd number: 1 9/40
90/14 + 49/40 is 2143/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
90/14 = 90 × 20/14 × 20 = 1800/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
49/40 = 49 × 7/40 × 7 = 343/280 - Add the two like fractions:
1800/280 + 343/280 = 1800 + 343/280 = 2143/280 - So, 90/14 + 49/40 = 2143/280
In mixed form: 7183/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14+98/40 90/28+49/40 90/14+49/80 90/42+49/40 90/70+49/40 90/98+49/40