Add 40/2 and 90/72
1st number: 20 0/2, 2nd number: 1 18/72
40/2 + 90/72 is 85/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 2 × 36 = 72,
40/2 = 40 × 36/2 × 36 = 1440/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Add the two like fractions:
1440/72 + 90/72 = 1440 + 90/72 = 1530/72 - 1530/72 simplified gives 85/4
- So, 40/2 + 90/72 = 85/4
In mixed form: 211/4
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