Question

Answer these below and whoever answers this below step by step first will be marked brainliest ​

Answer 1

Answer:

a) 1/3 : 1/4 : 1/5

= (1/3) ÷ (1/4) ÷ (1/5)

= (1/3 × 4/1) ÷ 1/5

= 4/3 × 5/1

= 20/3

b) (11/7 ÷ 33/14) × 2/5

= (11/7 × 14/33) × 2/5

= 2/3 × 2/5

= 4/15

c) -1/3 + -4/9 + -5/12 + 1

= The L.C.M. of the denominators are 36

= The fractions will be -

= (-12/36) + (-16/36) + (-15/36) + (36/36)

= [(-12) + (-16) + (-15) + 36] ÷ 36

= -7/36

d) 17/18 - (-8/9)

= The L.C.M. of the denominators are 18

= The fractions will be -

= (17/18) - (-16/18)

= [17 - (-16)] ÷ 18

= 33/18