Add 30/90 and 42/72
30/90 + 42/72 is 11/12.
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,
30/90 = 30 × 4/90 × 4 = 120/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Add the two like fractions:
120/360 + 210/360 = 120 + 210/360 = 330/360 - 330/360 simplified gives 11/12
- So, 30/90 + 42/72 = 11/12
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