Add 16/42 and 30/40
16/42 + 30/40 is 95/84.
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,
30/40 = 30 × 21/40 × 21 = 630/840 - Add the two like fractions:
320/840 + 630/840 = 320 + 630/840 = 950/840 - 950/840 simplified gives 95/84
- So, 16/42 + 30/40 = 95/84
In mixed form: 111/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/42+30/40 16/42+60/40 16/84+30/40 16/42+30/80 48/42+30/40 16/42+90/40 80/42+30/40