Answers

Add 40/63 and 64/45

1^st number: 40/63, 2^nd number: 1 19/45

40/63 + 64/45 is 72/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 63 × 5 = 315,
   40/63 = 40 × 5/63 × 5 = 200/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   64/45 = 64 × 7/45 × 7 = 448/315
4. Add the two like fractions:
   200/315 + 448/315 = 200 + 448/315 = 648/315
5. 648/315 simplified gives 72/35
6. So, 40/63 + 64/45 = 72/35
   In mixed form: 22/35

MathStep (Works offline)

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

Related: ⁸⁰/₆₃+⁶⁴/₄₅ ⁴⁰/₆₃+⁶⁴/₉₀

Add Fractions Calculator