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Add 21/10 and 7/18

1st number: 2 1/10, 2nd number: 7/18

21/10 + 7/18 is 112/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 10 × 9 = 90,
    21/10 = 21 × 9/10 × 9 = 189/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    7/18 = 7 × 5/18 × 5 = 35/90
  4. Add the two like fractions:
    189/90 + 35/90 = 189 + 35/90 = 224/90
  5. 224/90 simplified gives 112/45
  6. So, 21/10 + 7/18 = 112/45
    In mixed form: 222/45

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