Add 18/42 and 48/45
1st number: 18/42, 2nd number: 1 3/45
18/42 + 48/45 is 157/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
18/42 = 18 × 15/42 × 15 = 270/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
48/45 = 48 × 14/45 × 14 = 672/630 - Add the two like fractions:
270/630 + 672/630 = 270 + 672/630 = 942/630 - 942/630 simplified gives 157/105
- So, 18/42 + 48/45 = 157/105
In mixed form: 152/105
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