Answers

Add 27/30 and 54/63

27/30 + 54/63 is 123/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 30 × 21 = 630,
   27/30 = 27 × 21/30 × 21 = 567/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   54/63 = 54 × 10/63 × 10 = 540/630
4. Add the two like fractions:
   567/630 + 540/630 = 567 + 540/630 = 1107/630
5. 1107/630 simplified gives 123/70
6. So, 27/30 + 54/63 = 123/70
   In mixed form: 153/70

MathStep (Works offline)

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

Related: ⁵⁴/₃₀+⁵⁴/₆₃ ²⁷/₆₀+⁵⁴/₆₃ ⁸¹/₃₀+⁵⁴/₆₃ ²⁷/₉₀+⁵⁴/₆₃

Add Fractions Calculator