Add 70/10 and 90/72
1st number: 7 0/10, 2nd number: 1 18/72
70/10 + 90/72 is 33/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
70/10 = 70 × 36/10 × 36 = 2520/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Add the two like fractions:
2520/360 + 450/360 = 2520 + 450/360 = 2970/360 - 2970/360 simplified gives 33/4
- So, 70/10 + 90/72 = 33/4
In mixed form: 81/4
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