Add 54/40 and 1/42
1st number: 1 14/40, 2nd number: 1/42
54/40 + 1/42 is 577/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
54/40 = 54 × 21/40 × 21 = 1134/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
1/42 = 1 × 20/42 × 20 = 20/840 - Add the two like fractions:
1134/840 + 20/840 = 1134 + 20/840 = 1154/840 - 1154/840 simplified gives 577/420
- So, 54/40 + 1/42 = 577/420
In mixed form: 1157/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40+2/42 54/80+1/42 54/40+1/84 54/40+3/42 54/40+5/42 54/40+7/42