Add 4/72 and 75/70
1st number: 4/72, 2nd number: 1 5/70
4/72 + 75/70 is 71/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 70 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 72 × 35 = 2520,
4/72 = 4 × 35/72 × 35 = 140/2520 - Likewise, for the 2nd fraction, since 70 × 36 = 2520,
75/70 = 75 × 36/70 × 36 = 2700/2520 - Add the two like fractions:
140/2520 + 2700/2520 = 140 + 2700/2520 = 2840/2520 - 2840/2520 simplified gives 71/63
- So, 4/72 + 75/70 = 71/63
In mixed form: 18/63
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