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Add 40/70 and 5/90

40/70 + 5/90 is 79/126.

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,
    40/70 = 40 × 9/70 × 9 = 360/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    5/90 = 5 × 7/90 × 7 = 35/630
  4. Add the two fractions:
    360/630 + 35/630 = 360 + 35/630 = 395/630
  5. 395/630 simplified gives 79/126
  6. So, 40/70 + 5/90 = 79/126

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