Add 10/40 and 90/72
1st number: 10/40, 2nd number: 1 18/72
10/40 + 90/72 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
10/40 = 10 × 9/40 × 9 = 90/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Add the two like fractions:
90/360 + 450/360 = 90 + 450/360 = 540/360 - 540/360 simplified gives 3/2
- So, 10/40 + 90/72 = 3/2
In mixed form: 11/2
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