Add 16/84 and 54/40
1st number: 16/84, 2nd number: 1 14/40
16/84 + 54/40 is 647/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 84 × 10 = 840,
16/84 = 16 × 10/84 × 10 = 160/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
54/40 = 54 × 21/40 × 21 = 1134/840 - Add the two like fractions:
160/840 + 1134/840 = 160 + 1134/840 = 1294/840 - 1294/840 simplified gives 647/420
- So, 16/84 + 54/40 = 647/420
In mixed form: 1227/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/84+54/40 16/84+54/80 48/84+54/40 80/84+54/40