Add 42/72 and 9/90
42/72 + 9/90 is 41/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
9/90 = 9 × 4/90 × 4 = 36/360 - Add the two like fractions:
210/360 + 36/360 = 210 + 36/360 = 246/360 - 246/360 simplified gives 41/60
- So, 42/72 + 9/90 = 41/60
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