Question

1-1/5-3/8=, 1-2/9-3/10, 1-3/20-4/5=, 1-6/25-1/4=

Answer 1

1) 17/40 2) 43/90 3) 1/20 4) 51/100

Answer 2

1-1/5-3/8=1740
1-2/9-3/10=4390
1-3/20-4/5=120
1-6/25-1/4=71100