Simplification `7(3/10)+(-10)(7/21)​`

Simplify: 3/(10)+7/(15)+3/5

Simplify: 4/5+3/10+2/7

Express the following mathematical operations in scientific notation (1) (7.7 xx 10^(9))/(6.6 xx 10^(5)) (2) (7.7 xx 10^(-7))/(6.6 xx 10^(5))

Express the following mathematical operations in scientific notation. (1) (7.7xx10^(9))/(6.6xx10^(5)) (2) (7.7xx10^(-7))/(6.6xx10^(-5))

Express the following mathematical operations in scientific notation. 1) (7.7xx10^(9))/(6.6xx10^(5))" 2)" (7.7xx10^(-7))/(6.6xx10^(5))

(a) 3/10 + 2/10 + 7/10

The simplification of 2.002 + 7.9+{ 2.8-6.3+ ( 3.6-1.5) + 15.6} gives

Find the decimal expansions of (10)/(3),(7)/(8) and quad (1)/(7)

(7)/(x)+(3)/(5)=(-1)/(10)