Issolvi 640*(1/8-1/10)

$$640 \times ( \frac{ 1 }{ 8 } - \frac{ 1 }{ 10 } )$$

Evalwa

$$16$$

Passi tas-Soluzzjonijiet

L-inqas multipli komuni ta' 8 u 10 huwa 40. Ikkonverti \frac{1}{8} u \frac{1}{10} fi frazzjonijiet bid-denominatur 40.

$$640\left(\frac{5}{40}-\frac{4}{40}\right)$$

Billi \frac{5}{40} u \frac{4}{40} għandhom l-istess denominatur, naqqashom billi tnaqqas in-numeraturi tagħhom.

$$640\times \frac{5-4}{40}$$

Naqqas 4 minn 5 biex tikseb 1.

$$640\times \frac{1}{40}$$

Immultiplika 640 u \frac{1}{40} biex tikseb \frac{640}{40}.

$$\frac{640}{40}$$

Iddividi 640 b'40 biex tikseb16.

$$16$$

Fattur

$$2^{4}$$