Answers

Add 64/45 and 54/70

1^st number: 1 19/45, 2^nd number: 54/70

64/45 + 54/70 is 691/315.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 70 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 45 × 14 = 630,
   64/45 = 64 × 14/45 × 14 = 896/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   54/70 = 54 × 9/70 × 9 = 486/630
4. Add the two like fractions:
   896/630 + 486/630 = 896 + 486/630 = 1382/630
5. 1382/630 simplified gives 691/315
6. So, 64/45 + 54/70 = 691/315
   In mixed form: 261/315

MathStep (Works offline)

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

Related: ⁶⁴/₉₀+⁵⁴/₇₀

Add Fractions Calculator