3 1/5 • 2 1/4
Convert improper fractions: 3 1/5, 2 1/4
Apply Rule: a b/c = a • c + b/c
= 3 1/5
= 3 • 5 + 1/5
= 16/5
= 2 1/4
= 2 • 4 + 1/4
= 9/4
Apply Rule: a/b • c/d
= 16 • 9/5 • 4
Factor 16: 16 = 4 • 4
= 4 • 4 • 5/5 • 4
Cancel 4:
= 4 • 9/5
Multiply:
= 4 • 9
= 36
= 36/5
Convert improper fraction: 36/5
= 36 ÷ 5
= 7
Multiply Quotient to Divisor:
= 7 • 5
= 35
Subtract:
= 36 - 35
= 1
Rule: Quotient Remainder/Divisor
= 7 1/5
Answer: 7 1/5
