Add 32/42 and 42/40
1st number: 32/42, 2nd number: 1 2/40
32/42 + 42/40 is 761/420.
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,
32/42 = 32 × 20/42 × 20 = 640/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
42/40 = 42 × 21/40 × 21 = 882/840 - Add the two like fractions:
640/840 + 882/840 = 640 + 882/840 = 1522/840 - 1522/840 simplified gives 761/420
- So, 32/42 + 42/40 = 761/420
In mixed form: 1341/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/42+42/40 32/42+84/40 32/84+42/40 32/42+42/80 96/42+42/40