Add 90/72 and 90/30
1st number: 1 18/72, 2nd number: 3 0/30
90/72 + 90/30 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
90/30 = 90 × 12/30 × 12 = 1080/360 - Add the two like fractions:
450/360 + 1080/360 = 450 + 1080/360 = 1530/360 - 1530/360 simplified gives 17/4
- So, 90/72 + 90/30 = 17/4
In mixed form: 41/4
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