Add 16/42 and 70/40
1st number: 16/42, 2nd number: 1 30/40
16/42 + 70/40 is 179/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 42 × 20 = 840,
16/42 = 16 × 20/42 × 20 = 320/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
70/40 = 70 × 21/40 × 21 = 1470/840 - Add the two like fractions:
320/840 + 1470/840 = 320 + 1470/840 = 1790/840 - 1790/840 simplified gives 179/84
- So, 16/42 + 70/40 = 179/84
In mixed form: 211/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/42+70/40 16/84+70/40 16/42+70/80 48/42+70/40 80/42+70/40