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Add 7/5 and 21/9

1st number: 1 2/5, 2nd number: 2 3/9

7/5 + 21/9 is 56/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 9 is 45

    Next, find the equivalent fraction of both fractional numbers with denominator 45
  2. For the 1st fraction, since 5 × 9 = 45,
    7/5 = 7 × 9/5 × 9 = 63/45
  3. Likewise, for the 2nd fraction, since 9 × 5 = 45,
    21/9 = 21 × 5/9 × 5 = 105/45
  4. Add the two like fractions:
    63/45 + 105/45 = 63 + 105/45 = 168/45
  5. 168/45 simplified gives 56/15
  6. So, 7/5 + 21/9 = 56/15
    In mixed form: 311/15

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