Add 20/48 and 70/45
1st number: 20/48, 2nd number: 1 25/45
20/48 + 70/45 is 71/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 48 × 15 = 720,
20/48 = 20 × 15/48 × 15 = 300/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
70/45 = 70 × 16/45 × 16 = 1120/720 - Add the two like fractions:
300/720 + 1120/720 = 300 + 1120/720 = 1420/720 - 1420/720 simplified gives 71/36
- So, 20/48 + 70/45 = 71/36
In mixed form: 135/36
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