Fill in the blanks.
57 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.
57 of the girls =
79 of the boys
Make the numerators the same using the LCM of 5 and 7.
LCM of 5 and 7 = 35
5 x 77 x 7 of the girls of the girls =
7 x 59 x 5 of the boys
3549 of the girls =
3545 of the boys
The totals are shown in the denominators.
Number of girls = 49 u
(b)
Number of boys = 45 u
(c)
Total number of girls and boys
= 49 u + 45 u
= 94 u
(d)
Difference between the number of girls and boys
= 49 u - 45 u
= 4 u
Answer(s): (a) 49; (b) 45; (c) 94; (d) 4