Add 42/90 and 48/72
42/90 + 48/72 is 17/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
42/90 = 42 × 4/90 × 4 = 168/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
48/72 = 48 × 5/72 × 5 = 240/360 - Add the two like fractions:
168/360 + 240/360 = 168 + 240/360 = 408/360 - 408/360 simplified gives 17/15
- So, 42/90 + 48/72 = 17/15
In mixed form: 12/15
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