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Add 21/90 and 98/20

1st number: 21/90, 2nd number: 4 18/20

21/90 + 98/20 is 77/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    21/90 = 21 × 2/90 × 2 = 42/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    98/20 = 98 × 9/20 × 9 = 882/180
  4. Add the two like fractions:
    42/180 + 882/180 = 42 + 882/180 = 924/180
  5. 924/180 simplified gives 77/15
  6. So, 21/90 + 98/20 = 77/15
    In mixed form: 52/15

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