Question

what should be subtracted from the sum of -5/12 and -5/18 to get -71/72​

Answer 1

21/72 is your answer

let that no. be= x

-5/12+-5/18)-x=-71/72

(-5×2+-5×3/36)-x=-71/72

(-10+-15/36)-x=-71/72

(-10-15/36)-x=-71/72

(-25/36)-x=-71/72

-x=-71/72-(-25/36)

-x=-71/72+25/36

-x=-71× 1+25×2/72

-x=-71+50/72

-x=-21/72

x=21/72

hope it's helpful

have a good day ahead