Add 42/56 and 10/80
42/56 + 10/80 is 7/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 56 × 10 = 560,
42/56 = 42 × 10/56 × 10 = 420/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
10/80 = 10 × 7/80 × 7 = 70/560 - Add the two like fractions:
420/560 + 70/560 = 420 + 70/560 = 490/560 - 490/560 simplified gives 7/8
- So, 42/56 + 10/80 = 7/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56+10/80 42/56+20/80 42/56+30/80 42/56+50/80 42/56+70/80