Fill in the blanks.
47 of the girls are equal to
79 of the boys.
- Number of girls = _____ u
- Number of boys = _____ u
- Total number of girls and boys = _____ u
- Difference between the number of girls and boys = _____ u
(a)
Change fraction into units.
47 of the girls =
79 of the boys
Make the numerators the same using the LCM of 4 and 7.
LCM of 4 and 7 = 28
4 x 77 x 7 of the girls of the girls =
7 x 49 x 4 of the boys
2849 of the girls =
2836 of the boys
The totals are shown in the denominators.
Number of girls = 49 u
(b)
Number of boys = 36 u
(c)
Total number of girls and boys
= 49 u + 36 u
= 85 u
(d)
Difference between the number of girls and boys
= 49 u - 36 u
= 13 u
Answer(s): (a) 49; (b) 36; (c) 85; (d) 13