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Add 21/90 and 90/48

1st number: 21/90, 2nd number: 1 42/48

21/90 + 90/48 is 253/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 48 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 90 × 8 = 720,
    21/90 = 21 × 8/90 × 8 = 168/720
  3. Likewise, for the 2nd fraction, since 48 × 15 = 720,
    90/48 = 90 × 15/48 × 15 = 1350/720
  4. Add the two like fractions:
    168/720 + 1350/720 = 168 + 1350/720 = 1518/720
  5. 1518/720 simplified gives 253/120
  6. So, 21/90 + 90/48 = 253/120
    In mixed form: 213/120

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