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Answer:
a 78 /5
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a) 3 × 5 ⅕
= 3 × 26/5 (5×5+1)
= 78/5
= 15 ⅗
b) 5 × 6¾
= 5 × 27/4. (6×4+3)
= 135/4
= 33 ¾
c) 7 × 2¼
= 7 × 9/4
= 63/4
= 15¾
d) 4 × 6⅓
= 4 × 19/3
= 76/3
= 25⅓
e) 3¼ × 6
= 13/4 × 6
= 78/4
= 39/2 ( SIMPLIFYING)
= 19½
f) 3⅖ × 8
= 17/5 × 8
= 136/5
= 27⅕
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