7/4 ÷ [77/8 ÷ 30/5] = _____?

7/4 ÷ [77/8 ÷ 30/5] = _____?

Explanation

7/4 ÷ [77/8 ÷ 30/5 ]

7/4 ÷ [77/8 × 5/30]

= 7/4 ÷ 77/48

= 7/4 × 48/77

= 12/11