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Add 21/70 and 9/50

21/70 + 9/50 is 12/25.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 50 is 350
  2. For the 1st fraction, since 70 × 5 = 350,
    21/70 = 21 × 5/70 × 5 = 105/350
  3. Likewise, for the 2nd fraction, since 50 × 7 = 350,
    9/50 = 9 × 7/50 × 7 = 63/350
  4. Add the two fractions:
    105/350 + 63/350 = 105 + 63/350 = 168/350
  5. 168/350 simplified gives 12/25
  6. So, 21/70 + 9/50 = 12/25

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