Add 72/20 and 4/72
1st number: 3 12/20, 2nd number: 4/72
72/20 + 4/72 is 329/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
72/20 = 72 × 18/20 × 18 = 1296/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
4/72 = 4 × 5/72 × 5 = 20/360 - Add the two like fractions:
1296/360 + 20/360 = 1296 + 20/360 = 1316/360 - 1316/360 simplified gives 329/90
- So, 72/20 + 4/72 = 329/90
In mixed form: 359/90
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