Add 90/48 and 18/72
1st number: 1 42/48, 2nd number: 18/72
90/48 + 18/72 is 17/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 72 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
90/48 = 90 × 3/48 × 3 = 270/144 - Likewise, for the 2nd fraction, since 72 × 2 = 144,
18/72 = 18 × 2/72 × 2 = 36/144 - Add the two like fractions:
270/144 + 36/144 = 270 + 36/144 = 306/144 - 306/144 simplified gives 17/8
- So, 90/48 + 18/72 = 17/8
In mixed form: 21/8
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