Add 70/45 and 20/72
1st number: 1 25/45, 2nd number: 20/72
70/45 + 20/72 is 11/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
70/45 = 70 × 8/45 × 8 = 560/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
20/72 = 20 × 5/72 × 5 = 100/360 - Add the two like fractions:
560/360 + 100/360 = 560 + 100/360 = 660/360 - 660/360 simplified gives 11/6
- So, 70/45 + 20/72 = 11/6
In mixed form: 15/6
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