Add 7/72 and 90/20
1st number: 7/72, 2nd number: 4 10/20
7/72 + 90/20 is 331/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
7/72 = 7 × 5/72 × 5 = 35/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
90/20 = 90 × 18/20 × 18 = 1620/360 - Add the two like fractions:
35/360 + 1620/360 = 35 + 1620/360 = 1655/360 - 1655/360 simplified gives 331/72
- So, 7/72 + 90/20 = 331/72
In mixed form: 443/72
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