Add 70/75 and 4/72
70/75 + 4/72 is 89/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 75 × 24 = 1800,
70/75 = 70 × 24/75 × 24 = 1680/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
4/72 = 4 × 25/72 × 25 = 100/1800 - Add the two like fractions:
1680/1800 + 100/1800 = 1680 + 100/1800 = 1780/1800 - 1780/1800 simplified gives 89/90
- So, 70/75 + 4/72 = 89/90
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