Answers

Subtract 7/8 from 2/5

2/5 - 7/8 is -19/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 8 is 40
2. For the 1st fraction, since 5 × 8 = 40,
   2/5 = 2 × 8/5 × 8 = 16/40
3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
   7/8 = 7 × 5/8 × 5 = 35/40
4. Subtract the two fractions:
   16/40 - 35/40 = 16 - 35/40 = -19/40

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