Issolvi 100-4.2*(32.5-17.5/138.7-137

$$\frac{ 100-4.2 \times (32.5-17.5 }{ 138.7-137 }$$

Evalwa

$$\frac{1070}{17}\approx 62.941176471$$

Passi tas-Soluzzjonijiet

Naqqas 17.5 minn 32.5 biex tikseb 15.

$$100-\frac{4.2\times 15}{138.7-137}$$

Immultiplika 4.2 u 15 biex tikseb 63.

$$100-\frac{63}{138.7-137}$$

Naqqas 137 minn 138.7 biex tikseb 1.7.

$$100-\frac{63}{1.7}$$

Espandi \frac{63}{1.7} billi timmultiplika kemm in-numeratur kif ukoll id-denominatur b'10.

$$100-\frac{630}{17}$$

Ikkonverti 100 fi frazzjoni \frac{1700}{17}.

$$\frac{1700}{17}-\frac{630}{17}$$

Billi \frac{1700}{17} u \frac{630}{17} għandhom l-istess denominatur, naqqashom billi tnaqqas in-numeraturi tagħhom.

$$\frac{1700-630}{17}$$

Naqqas 630 minn 1700 biex tikseb 1070.

$$\frac{1070}{17}$$

Fattur

$$\frac{2 \cdot 5 \cdot 107}{17} = 62\frac{16}{17} = 62.94117647058823$$