Add 20/48 and 45/70
20/48 + 45/70 is 89/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 70 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 48 × 35 = 1680,
20/48 = 20 × 35/48 × 35 = 700/1680 - Likewise, for the 2nd fraction, since 70 × 24 = 1680,
45/70 = 45 × 24/70 × 24 = 1080/1680 - Add the two like fractions:
700/1680 + 1080/1680 = 700 + 1080/1680 = 1780/1680 - 1780/1680 simplified gives 89/84
- So, 20/48 + 45/70 = 89/84
In mixed form: 15/84
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