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bookishfairy73
3.Answer:= 37/4 − 16/5
= ((37 × 5) − (16 × 4)) / (4 × 5) 
= (185 - 64) / 20
= 121/20
= 121/20
= 6 1/20
Convert the mixed numbers into fractions.
Use the algebraic formula for subtraction of fractions: a/b - c/d = (ad - bc) / bd.
4.Answer:
= 57/20
= 2  17/20
The formula for subtracting fractions is a/b - c/d = (ad - bc) / bd.

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