Chong Jia Tao's answer to Azfer's Primary 5 Maths Fractions Singapore question.

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Chong Jia Tao
Chong Jia Tao's answer
8 answers (A Helpful Person)
(3.75/8) +(21/64) - (1.25/8) - 3/64 = 380
19/32 is 380
380/19x32=640