Add 42/70 and 75/16
1st number: 42/70, 2nd number: 4 11/16
42/70 + 75/16 is 423/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 16 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
42/70 = 42 × 8/70 × 8 = 336/560 - Likewise, for the 2nd fraction, since 16 × 35 = 560,
75/16 = 75 × 35/16 × 35 = 2625/560 - Add the two like fractions:
336/560 + 2625/560 = 336 + 2625/560 = 2961/560 - 2961/560 simplified gives 423/80
- So, 42/70 + 75/16 = 423/80
In mixed form: 523/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70+75/16 42/70+75/32 42/70+75/48 42/70+75/80