Answers

Add 54/36 and 42/40

1^st number: 1 18/36, 2^nd number: 1 2/40

54/36 + 42/40 is 51/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 40 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 36 × 10 = 360,
   54/36 = 54 × 10/36 × 10 = 540/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   42/40 = 42 × 9/40 × 9 = 378/360
4. Add the two like fractions:
   540/360 + 378/360 = 540 + 378/360 = 918/360
5. 918/360 simplified gives 51/20
6. So, 54/36 + 42/40 = 51/20
   In mixed form: 211/20

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁵⁴/₃₆+⁸⁴/₄₀ ⁵⁴/₇₂+⁴²/₄₀ ⁵⁴/₃₆+⁴²/₈₀

Add Fractions Calculator