Answers

Add 12/70 and 25/40

12/70 + 25/40 is 223/280.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 70 × 4 = 280,
   12/70 = 12 × 4/70 × 4 = 48/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   25/40 = 25 × 7/40 × 7 = 175/280
4. Add the two like fractions:
   48/280 + 175/280 = 48 + 175/280 = 223/280
5. So, 12/70 + 25/40 = 223/280

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