Add 72/40 and 7/90
1st number: 1 32/40, 2nd number: 7/90
72/40 + 7/90 is 169/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
72/40 = 72 × 9/40 × 9 = 648/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
7/90 = 7 × 4/90 × 4 = 28/360 - Add the two like fractions:
648/360 + 28/360 = 648 + 28/360 = 676/360 - 676/360 simplified gives 169/90
- So, 72/40 + 7/90 = 169/90
In mixed form: 179/90
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