Answers

Add 63/40 and 84/28

1^st number: 1 23/40, 2^nd number: 3 0/28

63/40 + 84/28 is 183/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 28 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 40 × 7 = 280,
   63/40 = 63 × 7/40 × 7 = 441/280
3. Likewise, for the 2nd fraction, since 28 × 10 = 280,
   84/28 = 84 × 10/28 × 10 = 840/280
4. Add the two like fractions:
   441/280 + 840/280 = 441 + 840/280 = 1281/280
5. 1281/280 simplified gives 183/40
6. So, 63/40 + 84/28 = 183/40
   In mixed form: 423/40

MathStep (Works offline)

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

Related: ⁶³/₈₀+⁸⁴/₂₈ ⁶³/₄₀+⁸⁴/₅₆

Add Fractions Calculator