Add 70/20 and 3/72
1st number: 3 10/20, 2nd number: 3/72
70/20 + 3/72 is 85/24.
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,
70/20 = 70 × 18/20 × 18 = 1260/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
3/72 = 3 × 5/72 × 5 = 15/360 - Add the two like fractions:
1260/360 + 15/360 = 1260 + 15/360 = 1275/360 - 1275/360 simplified gives 85/24
- So, 70/20 + 3/72 = 85/24
In mixed form: 313/24
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