Add 20/15 and 70/84
1st number: 1 5/15, 2nd number: 70/84
20/15 + 70/84 is 13/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
20/15 = 20 × 28/15 × 28 = 560/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
70/84 = 70 × 5/84 × 5 = 350/420 - Add the two like fractions:
560/420 + 350/420 = 560 + 350/420 = 910/420 - 910/420 simplified gives 13/6
- So, 20/15 + 70/84 = 13/6
In mixed form: 21/6
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