Add 40/14 and 42/80
1st number: 2 12/14, 2nd number: 42/80
40/14 + 42/80 is 947/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 14 × 40 = 560,
40/14 = 40 × 40/14 × 40 = 1600/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
42/80 = 42 × 7/80 × 7 = 294/560 - Add the two like fractions:
1600/560 + 294/560 = 1600 + 294/560 = 1894/560 - 1894/560 simplified gives 947/280
- So, 40/14 + 42/80 = 947/280
In mixed form: 3107/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14+42/80 40/14+84/80 40/28+42/80 40/42+42/80 40/70+42/80 40/98+42/80