Tonia and trinny are twins. Their friends give them identical cakes for their birthday. Tonia eats 1/8 of her cake and trinny eats 1/6 of her cake. How much cake is left?

Dear student
let total cake = x 
Tonia eats cake =x/8
Trinny eats cake = x/6
Then left cake = x - x/8 - x/6 = (48x-6x-8x)/48 = 34x/48 = 17x/24
Hence 17/24 part of cakes left

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