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Add 15/70 and 10/90

15/70 + 10/90 is 41/126.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 90 is 630
  2. For the 1st fraction, since 70 × 9 = 630,
    15/70 = 15 × 9/70 × 9 = 135/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    10/90 = 10 × 7/90 × 7 = 70/630
  4. Add the two fractions:
    135/630 + 70/630 = 135 + 70/630 = 205/630
  5. After reducing the fraction, the answer is 41/126

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