Question

Write each of the following as decimals. 1. 7/100 2. 30/10 3. 25/100 4. 3/100​

Answer 1

Answer:

Write each of the following as decimals:

(a) 5/10 (b) 3 + 7/10 (c) 200 + 60 + 5 + 1/10 (d) 70 + 8/10 (e) 88/10

(f) 4 (g) 3/2 (h) 2/5 (i) 12/5 (j) 3 (k) 4

Answer:

(a) 5/10 = 0.5

(b) 3 + 7/10 = 3 + 0.7 = 3.7

(c) 200 + 60 + 5 + 1/10 = 265 + 0.1 = 265.1

(d) 70 + 8/10 = 70 + 0.8 = 70.8

(e) 88/10 = (80 + 8)/10 = 80/10 + 8/10 = 8 + 0.8 = 8.8

(f) 4 = 4 + 2/5 = 4 + 0.4 = 4.4

(g) 3/2 = (3 * 5)/(2 * 5) = 15/10 = 1.5

(h) 2/5 = (2 * 2)/(2 * 5) = 4/10 = 0.4

(i) 12/5 = (12 * 2)/(2 * 5) = 24/10 = 2.4

(j) 3 = 3 + 3/5 = 3 + (3 * 2)/(5 * 2) = 3 + 6/10 = 3 + 0.6 = 3.6

(k) 4 = 4 + 1/2 = 4 + (1 * 5)/(5 * 2) = 4 + 5/10 = 4 + 0.5 = 4.5