问题
填空题
分母是72的最简真分数共有______个.
答案
71-(72÷2-1)-(72÷3-1)+(72÷6-1),
=71-(36-1)-(24-1)+(12-1),
=71-35-23+11,
=71-(35+23-11),
=71-47,
=24(个);
答:分母是72的最简真分数共有24个.
故答案为:24.
分母是72的最简真分数共有______个.
71-(72÷2-1)-(72÷3-1)+(72÷6-1),
=71-(36-1)-(24-1)+(12-1),
=71-35-23+11,
=71-(35+23-11),
=71-47,
=24(个);
答:分母是72的最简真分数共有24个.
故答案为:24.