Add 90/72 and 40/48
1st number: 1 18/72, 2nd number: 40/48
90/72 + 40/48 is 25/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 72 × 2 = 144,
90/72 = 90 × 2/72 × 2 = 180/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
40/48 = 40 × 3/48 × 3 = 120/144 - Add the two like fractions:
180/144 + 120/144 = 180 + 120/144 = 300/144 - 300/144 simplified gives 25/12
- So, 90/72 + 40/48 = 25/12
In mixed form: 21/12
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