Add 70/20 and 98/45
1st number: 3 10/20, 2nd number: 2 8/45
70/20 + 98/45 is 511/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
70/20 = 70 × 9/20 × 9 = 630/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
98/45 = 98 × 4/45 × 4 = 392/180 - Add the two like fractions:
630/180 + 392/180 = 630 + 392/180 = 1022/180 - 1022/180 simplified gives 511/90
- So, 70/20 + 98/45 = 511/90
In mixed form: 561/90
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