Add 70/20 and 4/72
1st number: 3 10/20, 2nd number: 4/72
70/20 + 4/72 is 32/9.
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,
4/72 = 4 × 5/72 × 5 = 20/360 - Add the two like fractions:
1260/360 + 20/360 = 1260 + 20/360 = 1280/360 - 1280/360 simplified gives 32/9
- So, 70/20 + 4/72 = 32/9
In mixed form: 35/9
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